WC-85DM A/B
WATER CLEAR RIGID 85 SHORE D
URETHANE CASTING SYSTEM

WC-85DM A/B is a rigid, 85 shore D, Mercury and Phthalate free, Water Clear aliphatic polyurethane designed to make clear or
tinted castings of all kinds. Its low viscosity with good heat resistance is perfect for a variety of prototype and short run production
parts. Its ability to accept pigments ranging from light to dark colors, and color stability when exposed to moderate UV light, make it
a great system for a variety of real-world applications. This system responds very well to heated tools for quicker demolds and faster
mold turnover.

Exceptional clarity Low Viscosity High Heat Resistance
RoHS/REACH Compliant Color Stability Mercury and Phthalate Free

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240-04e1 85 2
Density (g/cc) ASTM D792-00 1.130
Cubic Inches per Pound N/A 25.9
Color/Appearance Visual Colorless/Clear
Tensile Strength (psi) ASTM D638-03 9,400
Tensile Modulus (psi) ASTM D638-03 3.3 x 10
5
Elongation (%) ASTM D638-03 22
Flexural Strength (psi) ASTM D790-03 14,000
Flexural Modulus (psi) ASTM D790-03 3.5 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.003
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.55
Heat Deflection Temperature @ 66 psi ASTM D648-04 175 F (79.4 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 165 F (74 C)
Dielectric Constant, 1 MHz ASTM D150-87 2.944
Dissipation Factor, 1 MHz ASTM D150-87 0.0112
*Note: Reported physical properties are based on test specimens cured 1-2 hours at room temperature then 16 hours at 160 F (71.1 C).

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 65
Mix Ratio by volume 100 68
Specific Gravity @ 77 F (25 C) 1.09 1.04
Color Colorless Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 110 2,200
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 325
Work Time, 100g mass @ 77 F (25 C) 14 16 minutes
Gel Time 16 18 minutes
Demold Time @ 77 F (25 C) 6-8 hours
Demold Time @ 120 F (49 C) 3-4 hours
Properties above are typical and not for specifications.
ALIPHATIC & WATER CLEAR URETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION

An ISO-9001 Certified company

WC-85DM A/B Page 2 of 2 Date: 02/24/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

NOTE:

Platinum Silicone Mold materials are recommended for best results. Newly made Tin (Condensation Cure) Silicone molds may
cause inhibition with this Water Clear material. A bake-out process is recommended to remove reaction byproducts from Tin cure
silicones. Contact BJB s technical department for guidance on this process.

CURE SCHEDULE/HEAT CURING:

WC-85DM A/B is designed to be as user friendly as possible but can be more moisture sensitive compared to other BJB systems.
Avoid paper products and wood stir sticks. If casting at room temperature, vacuum degassing and pressure casting is highly
recommended to eliminate bubbles. When not casting under pressure, pre-heating the molds to above 100 F (38 C) can help eliminate
potential moisture bubbles. WC-85DM responds very well to heat curing. Demold times can be dramatically reduced by adding heat.
Pre-heating the mold and curing at 120 F (49 C) allows thin walled parts to be demolded as quick as 3-4 hours while retaining the
benefit of a 14-16 minute working time for proper mixing and vacuum degassing.

STORAGE AND HANDLING:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment
when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Gallon Kits 8 lbs. 5.2 lbs. 342
5-Gallon Kits 40 lbs. 26 lbs. 1,709
55-Gallon Drum Kits 440 lbs. 286 lbs. 18,803

SAFETY PRECAUTIONS:
Avoid contact with skin. Use protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an
allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.
Use in well-ventilated areas. Avoid breathing vapors. If exposures cannot be kept at a minimum, a respirator may be necessary in
addition to ventilation. The use of a positive pressure air supplied respirator is mandatory when airborne isocyanate concentrations
are not known or exceeds OSHA S TWA of 0.005 ppm. Air purifying, organic cartridge type respirators are not generally
recommended to use when handling this material without implementation of an end of life service program. Observe OSHA
regulations for respirator use (29 CFR 1910.134). Employers are responsible for selecting the correct respirator for each situation.

IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.

Handling Guide

WC-792 A/B
WATER CLEAR RIGID 84 SHORE D
URETHANE CASTING SYSTEM

WC-792 A/B is an impact resistant, rigid, 84 Shore D aliphatic polyurethane that is commonly used to make clear or tinted castings of
all kinds. Note: WC-792 A/B requires post-curing. Thin section casts, less than ” thick, may require in mold post-curing. See cure
schedule/heat curing instructions on page 2.

Exceptional clarity Excellent impact strength
15 minute standard working time with
five additional work speeds available
No odor Good weatherability Excellent heat resistance
UV light and oxidation
resistance

PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240 84 2
Density (g/cc) ASTM D792 1.1
Cubic Inches per Pound N/A 26.2
Color/Appearance Visual Water Clear/Colorless
Tensile Strength (psi) ASTM D638 8,300
Tensile Modulus (psi) ASTM D638 2.7 x 10
5
Elongation (%) ASTM D638 20
Flexural Strength (psi) ASTM D790 11,200
Flexural Modulus (psi) ASTM D790 3.0 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256 1.1
Heat Deflection Temperature @ 66psi ASTM D648 175 F (79 C)
Index of Refraction ASTM D542 1.49

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 75
Mix Ratio by volume 100 78
Specific Gravity @ 77 F (25 C) 1.08 1.04
Color Colorless Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 650 750
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 650 50
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes*
Demold Time @ 77 F (25 C) 16 24 hours
Properties above are typical and not for specifications.

ALIPHATIC & WATER CLEAR URETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION

WC-792 A/B Page 2 of 2 Date: 06/23/2015
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
Quality Management
System Registered
to ISO 9001:2008
*The 15-20 minute work time is the standard product. Products with 30, 60, 90, 180, and 240 minute work times are available on a
special order basis.

CURE SCHEDULE/HEAT CURING :

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the
physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71). Do not
exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part deformation during the heat curing
process.

NOTE:

The cure will be inhibited if cast against a tin catalyzed silicone RTV.

STORAGE AND HANDLING :

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment
when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Gallon Kits 8 lbs. 6 lbs. 366.8
5-Gallon Kits 40 lbs. 30 lbs. 1,834
55-Gallon Drum Kits 400 lbs. 300 lbs. 18,340

SAFETY PRECAUTIONS :

Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an
allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.
Use in well-ventilated areas. Avoid breathing vapors. If exposures cannot be kept at a minimum, a respirator may be necessary in
addition to ventilation. The use of a positive pressure air supplied respirator is mandatory when airborne isocyanate concentrations
are not known or exceeds OSHA S TWA of 0.005 ppm. Air purifying, organic cartridge type respirators are not generally
recommended to use when handling this material without implementation of an end of life service program. Observe OSHA
regulations for respirator use (29 CFR 1910.134). Employers are responsible for selecting the correct respirator for each situation.

IF CONTACT OCCURS :

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.

Handling Guide WC-792 Part A SDS WC-792 Part B-15 SDS

WC-766 A/B
WATER CLEAR 65 SHORE D
URETHANE CASTING SYSTEM

WC-766 A/B is a two part, clear, colorless 65 Shore D urethane castable product that is commonly used to make clear or tinted parts
of all kinds. When used at room temperature, castings 1/8″ thick or larger can be readily cast. Castings that are less than 1/8″ thick
generally require a mild post-cure.

Exceptional clarity Impact resistant 15-minute work time
No odor Good weatherability

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 65 5
Density (g/cc) ASTM D792 1.08
Cubic Inches per Pound N/A 26.4
Color/Appearance Visual Colorless/Clear
Tensile Strength (psi) ASTM D638 4,600
Tensile Modulus (psi) ASTM D638 3.1 x 10
4
Elongation (%) ASTM D638 225
Flexural Strength (psi) ASTM D790 315
Flexural Modulus (psi) ASTM D790 2.9 x 10
4
Tear Strength (pli) ASTM D624 460
Shrinkage (in/in) linear ASTM D2566 0.004
Izod Impact, notched (ft-lb/in) ASTM D256 8.9

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 75 100
Mix Ratio by volume 72 100
Specific Gravity @ 77 F (25 C) 1.08 1.03
Color Colorless Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 650 550
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 650 50
Work Time, 100g mass @ 77 F (25 C) 15 minutes
Gel Time 20 minutes
Demold Time @ 77 F (25 C) 6 8 hours
Properties above are typical and not for specifications.

ALIPHATIC & WATER CLEAR URETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION

An ISO-9001 Certified company

WC-766 A/B Page 2 of 2 Date: 03/22/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

CURE SCHEDULE/HEAT CURING:

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the
physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71). Do not
exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part deformation during the heat curing
process.

NOTE:

The cure may be inhibited if cast against a tin catalyzed silicone RTV.

STORAGE AND HANDLING:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment
when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Gallon Kits 6 lbs. 8 lbs. 370
5-Gallon Kits 30 lbs. 40 lbs. 1,848

SAFETY PRECAUTIONS:
Avoid contact with skin. Use protective gloves and protective clothing. Repeated or prolonged contact on the skin may cause an
allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling this product.
Use in well-ventilated areas. Avoid breathing vapors. If exposures cannot be kept at a minimum, a respirator may be necessary in
addition to ventilation. The use of a positive pressure air supplied respirator is mandatory when airborne isocyanate concentrations
are not known or exceeds OSHA S TWA of 0.005 ppm. Air purifying, organic cartridge type respirators are not generally
recommended to use when handling this material without implementation of an end of life service program. Observe OSHA
regulations for respirator use (29 CFR 1910.134). Employers are responsible for selecting the correct respirator for each situation.
IF CONTACT OCCURS:

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.

WARNING: This product can expose you to chemicals including Phenyl mercury acetate, Naphthalene, and 1,2-
Benzenedicarboxylic acid, di-C9-11-branched alkyl esters, C10-rich, which are known to the State of California to cause cancer
and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Refer to the Material Safety Data Sheet before using this product.

Handling Guide

TC-895 A/B
RIGID 84 SHORE D HIGH HEAT RESISTANT
POLYURETHANE CASTING SYSTEM

TC-895 A/B is a RoHS compliant, non-mercury based catalyst polyurethane system that produces a tough 84 shore D material.
This system has an extremely high heat deflection temperature and has been used for under the hood automotive applications. In
some cases, TC-895 can be post cured without having to use fixtures.

High heat resistance High impact
RoHS/REACH compliant Working time of 6-7 minutes

PHYSICAL PROPERTIES TEST METHOD
CURE
SCHEDULE 1*
CURE
SCHEDULE 2*
Hardness, Shore D ASTM D2240-04e1 84 2 84 2
Density (g/cc) ASTM D792-00 1.22 1.22
Cubic Inches per Pound N/A 24 24
Color/Appearance Visual
Translucent Pale
Yellow
Translucent Pale
Yellow
Tensile Strength (psi) ASTM D638-03 10,300 10,400
Tensile Modulus (psi) ASTM D638-03 2.93 x 10
5
2.87 x 10
5
Elongation (%) ASTM D638-03 9.1 9.8
Flexural Strength (psi) ASTM D790-03 12,700 12,200
Flexural Modulus (psi) ASTM D790-03 3.17 x 10
5
3.03 x 10
5
Shrinkage (in/in) linear 12 x x 0.008 0.005
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.88 0.95
Heat Deflection Temperature @ 66 psi ASTM D648-04 340 F (171.1 C) 290 F (143.3 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 218 F (103.3 C) 213 F (100.6 C)
Coefficient of Thermal Expansion (in/in/ F) ASTM E831-06 73.1 x 10
-6
TBD

CURE SCHEDULE 1:

To achieve maximum physical properties, the material should be preconditioned to 77 F (25 C) and the mold approximately to
120 F (49 C). After casting the material, the mold should be placed into a 150 F (66 C) oven and left for 1 hour. After 1 hour
the part can be demolded and then post cured with heat for 16 hours at 180 F (82 C). Support of the part in some cases may be
required to prevent part deformation during the heat curing process.

CURE SCHEDULE 2:

Most of the physical properties can be achieved when casting this product at room temperature then followed with a post cure.
Precondition the material and molds to 77 F (25 C). After casting, leave the part at room temperature for 16 24 hours
followed with a post cure for an additional 16 hours at 180 F (82 C). Support of the part in some cases may be required to
prevent part deformation during the heat curing process.
Note: To obtain higher heat deflection temperatures and faster demold times, it is advised to use heat during the casting process.

TC-895 A/B Page 2 of 2 Date: 11/04/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed Manufacturer’s
sale price of the particular quantity with respect to which damages are claimed.”
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight or volume) 100 50
Specific Gravity 1.16 1.16
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,000 650
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 850
Work Time, 100g mass @ 77 F (25 C) 6 7 minutes
Gel Time 7 8 minutes
Demold Time @ 77 F (25 C) 5 6 hours
Demold Time @ 150 F (66 C) 1 hour
Properties above are typical and not for specifications.

NOTE #1:
It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can speed up the
process. BJB s AF-4 antifoam works best as the de-airing agent. In conjunction with these support products BJB offers pigments in a
wide variety of colors and stainless steel mixers called Jiffy Mixers . For additional information on the use of this product, refer to
BJB Guidelines for Handling Polyurethane Products. If further information is required, please call BJB s technical staff for assistance.

NOTE #2:
When the cured material is exposed to direct sunlight or strong UV, the material will turn to an orange color within approximately 2
hours.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 1 lb. 72
Gallon Kits 8 lbs. 4 lbs. 288
5-Gallon Kits 40 lbs. 20 lbs. 1,440

SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if
allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including Naphthalene, which is known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Handling Guide

RIGID FR URETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-894 FR REV 1
RIGID 80 SHORE D URETHANE CASTING SYSTEM
FIRE RETARDANT

This tough 80 Shore D Flame Retardant material is UL Listed with a flammability rating at 1/16 inch (1.6 mm). It s great for hand
casting or machine dispensing electronic enclosures, or any parts requiring flame retardant characteristics. The 2.5 minute work
time exhibits very low shrinkage and exceptional physical properties. Also available in a variety of work times as TC-890, 891,
and 892 FR REV 1.

RoHS/REACH compliant 2.5 minute work time
60 minute demold time
UL 94V-0 Listed, flammability rating at 1/16
thickness (File# E174527)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240-04e1 80 2
Density (g/cc) ASTM D792-00 1.3
Cubic Inches per Pound N/A 21.9
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 6,117
Tensile Modulus (psi) ASTM D638-03 2.5 x 10
5
Elongation (%) ASTM D638-03 21
Flexural Strength (psi) ASTM D790-03 10,126
Flexural Modulus (psi) ASTM D790-03 2.81 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.0015
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.58
Heat Deflection Temperature @ 66 psi ASTM D648-04 186 F (85.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 168 F (75.6 C)
Dielectric Constant, 1 MHz ASTM D150-87 3.241
Dissipation Factor, 1 MHz ASTM D150-87 0.014
Ball Pressure Test (mm) 167 F (75 C) IEC 60695-10-2 1.3
Note: Reported physical properties are based on test specimens cured at an elevated temperature, 180 F (82 C).

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 70 100
Mix Ratio by volume 79 100
Specific Gravity @ 77 F (25 C) 1.18 1.33
Color Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 325 1,450
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 740

TC-894 FR REV 1 Page 2 of 2 Date: 02/22/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial compliance
is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to merchantability, fitness
for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed Manufacturer’s sale price of the particular
quantity with respect to which damages are claimed.”

HANDLING PROPERTIES (continued)
Work Time, 100g mass @ 77 F (25 C) 2.5 minutes
Gel Time 3 minutes
Demold Time @ 77 F (25 C) 60 minutes
Properties above are typical and not for specifications.

CURE SCHEDULE/HEAT CURING :
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F (82 C). Do not exceed curing
temperatures of 200 F (93 C). Support of the part may be required to prevent part deformation during the heat curing process.

NOTE:
It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can speed up the
process. BJB’s AF-5 antifoam works best as the de-airing agent. In conjunction with these support products BJB offers pigments in a
wide variety of colors and stainless steel mixers called “Jiffy Mixers.” If help is required call BJB for assistance. For additional
information on the use of this product, refer to BJB Guidelines for Handling Polyurethane Products.

ACCESSORIES:
BJB offers silicone RTV mold making materials along with a wide range of accessory items. These include de-airing agents, pigments,
mold releases, and Jiffy

Mixers. Visit BJB s website at www.bjbenterprises.com or consult a BJB representative for more information.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B Cubic Inches per Kit
Gallon Kits 5.6 lbs. 8 lbs. 298
5-Gallon Kits 28 lbs. 40 lbs. 1,489

SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on
the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when
handling this product.

IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if
allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed
by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C8-10-branced alkyl esters,
C9-rich, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov.

Handling Guide

RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-892 A/B
RIGID 80 SHORE D URETHANE CASTING SYSTEM

TC-892 A/B incorporates a non-mercury based catalyst system that produces a tough 80 shore D material with a 20-minute
work time. This system can be used to hand pour large electronic housings, models of all kinds, and point of purchase
items. This system is also available in a 5-minute work time (TC-890), and a 12-minute work time (TC-891).

Non-mercury RoHS compliant
Convenient mixing ratio: 1 to 1 parts by weight Long working time: 20 minutes
Low viscosity, flows easily
Demold time: 5-6 hours at ambient temperature in
a silicone rubber mold (1/8 thick section)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 80 2
Density (g/cc) ASTM D792 1.14
Cubic Inches per Pound N/A 25
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638 7,600
Tensile Modulus (psi) ASTM D638 2.4 x 10
5
Elongation (%) ASTM D638 10
Flexural Strength (psi) ASTM D790 10,000
Flexural Modulus (psi) ASTM D790 2.5 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.005
Izod Impact, notched (ft-lb/in) ASTM D256 0.7
Heat Deflection Temperature @ 66 psi ASTM D648 195 F (90.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648 177 F (80.6 C)
Note: Reported physical properties based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 88 100
Specific Gravity @ 77 F (25 C) 1.18 1.04
Color Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 325 830
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 725
Work Time, 100g mass @ 77 F (25 C) 20 minutes
Gel Time 25 minutes
Demold Time @ 77 F (25 C) 5 6 hours
Properties above are typical and not for specifications.

TC-892 A/B Page 2 of 2 Date: 10/25/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

CURE SCHEDULE/HEAT CURING :

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE:

It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can
speed up the process. BJB’s AF-7 antifoam works best as the de-airing agent. In conjunction with these support products
BJB offers pigments in a wide variety of colors and stainless steel mixers called “Jiffy Mixers.” If help is required call BJB
for assistance. For additional information on the use of this product, refer to BJB Guidelines for Handling Polyurethane
Products.

STORAGE:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 2 lbs. 100
Gallon Kits 8 lbs. 8 lbs. 400
5-Gallon Kits 40 lbs. 40 lbs. 2,000

SAFETY PRECAUTIONS :

Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.

IF CONTACT OCCURS :

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek
qualified medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C8-10-branched
alkyl esters, C9-rich, which is known to the State of California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.

Handling Guide

RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-890 A/B
RIGID 80 SHORE D URETHANE CASTING SYSTEM

TC-890 A/B incorporates a non-mercury based catalyst system that produces a tough 80 shore D material with a 5-minute
work time. This system can be used to hand pour electronic housings, models of all kinds, and point of purchase items.
This system is also available in a 20-minute work time (TC-892), and a 12-minute work time (TC-891).

Non-mercury RoHS compliant
Convenient mixing ratio: 1 to 1 parts by weight Low viscosity, flows easily
Demold time: 1-2 hours at ambient temperature in
a silicone rubber mold (1/8 thick section)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 80 2
Density (g/cc) ASTM D792 1.14
Cubic Inches per Pound N/A 25
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638 7,600
Tensile Modulus (psi) ASTM D638 2.4 x 10
5
Elongation (%) ASTM D638 10
Flexural Strength (psi) ASTM D790 10,000
Flexural Modulus (psi) ASTM D790 2.5 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.004
Izod Impact, notched (ft-lb/in) ASTM D256 0.7
Heat Deflection Temperature @ 66 psi ASTM D648 195 F (90.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648 177 F (80.6 C)
Note: Reported physical properties based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 88 100
Specific Gravity @ 77 F (25 C) 1.18 1.04
Color Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 325 830
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 725
Work Time, 100g mass @ 77 F (25 C) 5 minutes
Gel Time 7 minutes
Demold Time @ 77 F (25 C) 1 2 hours
Properties above are typical and not for specifications.

TC-890 A/B Page 2 of 2 Date: 11/01/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

IMPORTANT MIXING DIRECTION:

It is important to remix the B components thoroughly prior to each use.

CURE SCHEDULE/HEAT CURING :

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE:

It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can
speed up the process. BJB’s AF-7 antifoam works best as the de-airing agent. In conjunction with these support products
BJB offers pigments in a wide variety of colors and stainless steel mixers called “Jiffy Mixers.” If help is required call BJB
for assistance. For additional information on the use of this product, refer to BJB Guidelines for Handling Polyurethane
Products.

STORAGE:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 2 lbs. 100
Gallon Kits 8 lbs. 8 lbs. 400
5-Gallon Kits 40 lbs. 40 lbs. 2,000

SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek
qualified medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C8-10-branched
alkyl esters, C9-rich, which is known to the State of California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.

Handling Guide

RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-890 A/B
RIGID 80 SHORE D URETHANE CASTING SYSTEM

TC-890 A/B incorporates a non-mercury based catalyst system that produces a tough 80 shore D material with a 5-minute
work time. This system can be used to hand pour electronic housings, models of all kinds, and point of purchase items.
This system is also available in a 20-minute work time (TC-892), and a 12-minute work time (TC-891).

Non-mercury RoHS compliant
Convenient mixing ratio: 1 to 1 parts by weight Low viscosity, flows easily
Demold time: 1-2 hours at ambient temperature in
a silicone rubber mold (1/8 thick section)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 80 2
Density (g/cc) ASTM D792 1.14
Cubic Inches per Pound N/A 25
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638 7,600
Tensile Modulus (psi) ASTM D638 2.4 x 10
5
Elongation (%) ASTM D638 10
Flexural Strength (psi) ASTM D790 10,000
Flexural Modulus (psi) ASTM D790 2.5 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.004
Izod Impact, notched (ft-lb/in) ASTM D256 0.7
Heat Deflection Temperature @ 66 psi ASTM D648 195 F (90.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648 177 F (80.6 C)
Note: Reported physical properties based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 88 100
Specific Gravity @ 77 F (25 C) 1.18 1.04
Color Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 325 830
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 725
Work Time, 100g mass @ 77 F (25 C) 5 minutes
Gel Time 7 minutes
Demold Time @ 77 F (25 C) 1 2 hours
Properties above are typical and not for specifications.

TC-890 A/B Page 2 of 2 Date: 11/01/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

IMPORTANT MIXING DIRECTION:

It is important to remix the B components thoroughly prior to each use.

CURE SCHEDULE/HEAT CURING :

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE:

It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can
speed up the process. BJB’s AF-7 antifoam works best as the de-airing agent. In conjunction with these support products
BJB offers pigments in a wide variety of colors and stainless steel mixers called “Jiffy Mixers.” If help is required call BJB
for assistance. For additional information on the use of this product, refer to BJB Guidelines for Handling Polyurethane
Products.

STORAGE:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 2 lbs. 100
Gallon Kits 8 lbs. 8 lbs. 400
5-Gallon Kits 40 lbs. 40 lbs. 2,000

SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek
qualified medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C8-10-branched
alkyl esters, C9-rich, which is known to the State of California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.

Handling Guide

RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-890 A/B
RIGID 80 SHORE D URETHANE CASTING SYSTEM

TC-890 A/B incorporates a non-mercury based catalyst system that produces a tough 80 shore D material with a 5-minute
work time. This system can be used to hand pour electronic housings, models of all kinds, and point of purchase items.
This system is also available in a 20-minute work time (TC-892), and a 12-minute work time (TC-891).

Non-mercury RoHS compliant
Convenient mixing ratio: 1 to 1 parts by weight Low viscosity, flows easily
Demold time: 1-2 hours at ambient temperature in
a silicone rubber mold (1/8 thick section)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 80 2
Density (g/cc) ASTM D792 1.14
Cubic Inches per Pound N/A 25
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638 7,600
Tensile Modulus (psi) ASTM D638 2.4 x 10
5
Elongation (%) ASTM D638 10
Flexural Strength (psi) ASTM D790 10,000
Flexural Modulus (psi) ASTM D790 2.5 x 10
5
Shrinkage (in/in) linear 12 x1/2 x1/2 0.004
Izod Impact, notched (ft-lb/in) ASTM D256 0.7
Heat Deflection Temperature @ 66 psi ASTM D648 195 F (90.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648 177 F (80.6 C)
Note: Reported physical properties based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 88 100
Specific Gravity @ 77 F (25 C) 1.18 1.04
Color Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 325 830
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 725
Work Time, 100g mass @ 77 F (25 C) 5 minutes
Gel Time 7 minutes
Demold Time @ 77 F (25 C) 1 2 hours
Properties above are typical and not for specifications.

TC-890 A/B Page 2 of 2 Date: 11/01/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

IMPORTANT MIXING DIRECTION:

It is important to remix the B components thoroughly prior to each use.

CURE SCHEDULE/HEAT CURING :

Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE:

It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can
speed up the process. BJB’s AF-7 antifoam works best as the de-airing agent. In conjunction with these support products
BJB offers pigments in a wide variety of colors and stainless steel mixers called “Jiffy Mixers.” If help is required call BJB
for assistance. For additional information on the use of this product, refer to BJB Guidelines for Handling Polyurethane
Products.

STORAGE:

Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 2 lbs. 100
Gallon Kits 8 lbs. 8 lbs. 400
5-Gallon Kits 40 lbs. 40 lbs. 2,000

SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek
qualified medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.

Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C8-10-branched
alkyl esters, C9-rich, which is known to the State of California to cause cancer. For more information, go to
www.P65Warnings.ca.gov.

Handling Guide

TC-89 PRIMER

This primer was developed to apply against cured urethane substrates for achieving good adhesion when applying another urethane
product for painting or bonding applications.

APPLICATION:

Apply to clean and dry surface to
1
/10 mil or less in thickness. Spraying is the preferred method of applying this primer, however a
light brush or roller coat is adequate in some cases. Drying times will vary with working conditions. At room temperature, the
primer is generally tack free in 45 minutes to 1 hour.

It is recommended that best adhesion results will be gained by applying coatings, casting materials or other materials on the primer
between 45 and 60 minutes after the primer has been applied. Mixed TC-89 A/B should be used within 1 week.

COVERAGE:

1 pint will cover approximately 40 square feet and will provide about mil dry thickness. NOTE: This may vary depending on the
substrate s absorption characteristics.

HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 10 100
Specific Gravity @ 77 F (25 C) 1.23 0.81
Color Dark Brown Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 250 0.61

STORAGE:

Store ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

SAFETY PRECAUTIONS:

Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged
contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or
goggles when handling this product.

TC-89 A/B PRIMER Page 2 of 2 Date: 04/24/2024
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
IF CONTACT OCCURS:

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.

WARNING: This product can expose you to chemicals including Methyl isobutyl ketone, which is/are known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

NOTE:
Refer to the Safety Data Sheet before using this product. For processing tips and guides, please visit: learn.bjbmaterials.com to
discover additional information.

TC-89 PRIMER

This primer was developed to apply against cured urethane substrates for achieving good adhesion when applying another urethane
product for painting or bonding applications.

APPLICATION:

Apply to clean and dry surface to
1
/10 mil or less in thickness. Spraying is the preferred method of applying this primer, however a
light brush or roller coat is adequate in some cases. Drying times will vary with working conditions. At room temperature, the
primer is generally tack free in 45 minutes to 1 hour.

It is recommended that best adhesion results will be gained by applying coatings, casting materials or other materials on the primer
between 45 and 60 minutes after the primer has been applied. Mixed TC-89 A/B should be used within 1 week.

COVERAGE:

1 pint will cover approximately 40 square feet and will provide about mil dry thickness. NOTE: This may vary depending on the
substrate s absorption characteristics.

HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 10 100
Specific Gravity @ 77 F (25 C) 1.23 0.81
Color Dark Brown Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 250 0.61

STORAGE:

Store ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

SAFETY PRECAUTIONS:

Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged
contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or
goggles when handling this product.

TC-89 A/B PRIMER Page 2 of 2 Date: 04/24/2024
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
IF CONTACT OCCURS:

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.

WARNING: This product can expose you to chemicals including Methyl isobutyl ketone, which is/are known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

NOTE:
Refer to the Safety Data Sheet before using this product. For processing tips and guides, please visit: learn.bjbmaterials.com to
discover additional information.

RIGID FR POLYURETHANES

By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-886 FR REV 1
RIGID 78 SHORE D POLYURETHANE CASTING SYSTEM
FIRE RETARDANT

TC-886 A/B FR REV 1 produces a high impact rigid 78 Shore D material that is commonly used to make computer
housings, models, artwork, electronic component enclosures and all types of parts requiring flame retardant characteristics.
It provides a working time of 15 minutes.

Non-mercury based catalyst system Excellent for vacuum or pressure casting
RoHS/REACH compliant Low viscosity
Three to four hour demold time UL 94 V0 Listed (File# E174527)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240-04e1 78 2
Density (g/cc) ASTM D792-00 1.26
Cubic Inches per Pound N/A 22.6
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638-03 5,950
Tensile Modulus (psi) ASTM D638-03 224,000

Elongation (%) ASTM D638-03 20
Flexural Strength (psi) ASTM D790-03 9,600
Flexural Modulus (psi) ASTM D790-03 265,000

Shrinkage (in/in) linear 12 x1/2 x1/2 0.0005
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.57
Heat Deflection Temperature @ 66 psi ASTM D648-04 190 F (87.8 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 173 F (78.3 C)
Dielectric Constant, 1 MHz ASTM D150-87 3.342
Dissipation Factor, 1 MHz ASTM D150-87 0.016
Ball Pressure Test (mm) 167 F (75 C) IEC 60695-10-2 1.2 1.3
Note: Reported physical properties based on elevated temperature cured test specimens.

TC-886 A/B FR REV 1 Page 2 of 2 Date: 07/03/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 85
Mix Ratio by volume 100 68
Specific Gravity @ 77 F (25 C) 1.10 1.38
Color Pale Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 75 3,200
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 310
Work Time, 100g mass @ 77 F (25 C) 15 minutes
Gel Time 18 minutes
Demold Time @ 77 F (25 C) 3 4 hours
Properties above are typical and not for specifications.

CURE SCHEDULE / HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F (82 C). Do not exceed curing
temperatures of 200 F (93 C). Support of the part may be required to prevent part deformation during the heat curing process.

VACUUM DE-GASSING / DE-AIRING:
It is advisable to evacuate entrapped air prior to casting this system. The use of a de-airing agent, (BJB s AF-7) will aid in this process
when either de-airing the combined A/B mixture or when de-airing the A and B components separately.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 1.7 lbs. 84
Gallon Kits 8 lbs. 6.8 lbs. 335
5-Gallon Kits 40 lbs. 34 lbs. 1,672

SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on
the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when
handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if
allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed
by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C9-11-branched alkyl esters,
C10-rich, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov.

Handling Guide

RIGID FR POLYURETHANES

By BJB Enterprises. Inc.
An ISO-9001 Certified company

TC-886 FR REV 1
RIGID 78 SHORE D POLYURETHANE CASTING SYSTEM
FIRE RETARDANT

TC-886 A/B FR REV 1 produces a high impact rigid 78 Shore D material that is commonly used to make computer
housings, models, artwork, electronic component enclosures and all types of parts requiring flame retardant characteristics.
It provides a working time of 15 minutes.

Non-mercury based catalyst system Excellent for vacuum or pressure casting
RoHS/REACH compliant Low viscosity
Three to four hour demold time UL 94 V0 Listed (File# E174527)

PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240-04e1 78 2
Density (g/cc) ASTM D792-00 1.26
Cubic Inches per Pound N/A 22.6
Color/Appearance Visual Off White/Opaque
Tensile Strength (psi) ASTM D638-03 5,950
Tensile Modulus (psi) ASTM D638-03 224,000

Elongation (%) ASTM D638-03 20
Flexural Strength (psi) ASTM D790-03 9,600
Flexural Modulus (psi) ASTM D790-03 265,000

Shrinkage (in/in) linear 12 x1/2 x1/2 0.0005
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.57
Heat Deflection Temperature @ 66 psi ASTM D648-04 190 F (87.8 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 173 F (78.3 C)
Dielectric Constant, 1 MHz ASTM D150-87 3.342
Dissipation Factor, 1 MHz ASTM D150-87 0.016
Ball Pressure Test (mm) 167 F (75 C) IEC 60695-10-2 1.2 1.3
Note: Reported physical properties based on elevated temperature cured test specimens.

TC-886 A/B FR REV 1 Page 2 of 2 Date: 07/03/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 85
Mix Ratio by volume 100 68
Specific Gravity @ 77 F (25 C) 1.10 1.38
Color Pale Yellow White
Viscosity (cps) @ 77 F (25 C) Brookfield 75 3,200
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 310
Work Time, 100g mass @ 77 F (25 C) 15 minutes
Gel Time 18 minutes
Demold Time @ 77 F (25 C) 3 4 hours
Properties above are typical and not for specifications.

CURE SCHEDULE / HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F (82 C). Do not exceed curing
temperatures of 200 F (93 C). Support of the part may be required to prevent part deformation during the heat curing process.

VACUUM DE-GASSING / DE-AIRING:
It is advisable to evacuate entrapped air prior to casting this system. The use of a de-airing agent, (BJB s AF-7) will aid in this process
when either de-airing the combined A/B mixture or when de-airing the A and B components separately.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.

PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 1.7 lbs. 84
Gallon Kits 8 lbs. 6.8 lbs. 335
5-Gallon Kits 40 lbs. 34 lbs. 1,672

SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on
the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when
handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if
allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed
by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including 1,2-Benzenedicarboxylic acid, di-C9-11-branched alkyl esters,
C10-rich, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov.

Handling Guide

TC-872 A/B
RIGID 70 SHORE D HIGH HEAT RESISTANT
POLYURETHANE CASTING SYSTEM

TC-872 A/B is a RoHS compliant, non-mercury based catalyst polyurethane system that produces a tough 70 shore D
material. This system has an exceptionally high impact and a high heat deflection temperature which in some cases can be
post cured without having to use fixtures.

High heat resistance High Impact
Non-mercury RoHS/REACH compliant
Working time of 10-12 minutes

PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 70 2
Density (g/cc) ASTM D792-00 1.13
Cubic Inches per Pound N/A 25.5
Color/Appearance Visual Translucent Pale Yellow
Tensile Strength (psi) ASTM D638-03 3,310
Tensile Modulus (psi) ASTM D638-03 71,350

Elongation (%) ASTM D638-03 28.3
Flexural Strength (psi) ASTM D790-03 3,315
Flexural Modulus (psi) ASTM D790-03 84,680

Shrinkage (in/in) linear 12 x x 0.004
Izod Impact, notched (ft-lb/in) ASTM D256-05 1.78
Heat Deflection Temperature @ 66 psi ASTM D648-04 240 F (115.6 C)
Note: Reported physicals based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 35
Mix Ratio (by volume) 100 32
Specific Gravity @ 77 F (25 C) 1.06 1.16
Color Colorless Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 830 650
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 750
Work Time, 100g mass @ 77 F (25 C) 10 12 minutes
Gel Time 13 15 minutes
Demold Time @ 77 F (25 C) 2 3 hours
Properties above are typical and not for specifications.

RIGID FILLED & UNFILLED URETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION

An ISO-9001 Certified company

TC-872 A/B Page 2 of 2 Date: 06/29/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE #1:
Important: Shake or re-blend both A and B components separately prior to weighing and combining. It is
advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can speed
up the process. BJB s AF-4 antifoam works best as the de-airing agent. In conjunction with these support products BJB
offers pigments in a wide variety of colors and stainless steel mixers called Jiffy Mixers . For additional information on
the use of this product, refer to BJB Guidelines for Handling Polyurethane Products. If further information is required,
please call BJB s technical staff for assistance.

NOTE #2:
The natural color of TC-872 A/B is a translucent pale yellow. When the cured material is exposed to direct sunlight or
strong UV light, the material will turn to an amber/orange color within approximately 2 hours.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-
sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 0.7 lb. 69
Gallon Kits 8 lbs. 2.8 lbs. 275
5-Gallon Kits 40 lbs. 14 lbs. 1,377
55-Gallon Drum Kits 400 lbs. 140 lbs. 13,770

SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.

IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including Toluene diisocyanate, which are known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Handling Guide

TC-872 A/B
RIGID 70 SHORE D HIGH HEAT RESISTANT
POLYURETHANE CASTING SYSTEM

TC-872 A/B is a RoHS compliant, non-mercury based catalyst polyurethane system that produces a tough 70 shore D
material. This system has an exceptionally high impact and a high heat deflection temperature which in some cases can be
post cured without having to use fixtures.

High heat resistance High Impact
Non-mercury RoHS/REACH compliant
Working time of 10-12 minutes

PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 70 2
Density (g/cc) ASTM D792-00 1.13
Cubic Inches per Pound N/A 25.5
Color/Appearance Visual Translucent Pale Yellow
Tensile Strength (psi) ASTM D638-03 3,310
Tensile Modulus (psi) ASTM D638-03 71,350

Elongation (%) ASTM D638-03 28.3
Flexural Strength (psi) ASTM D790-03 3,315
Flexural Modulus (psi) ASTM D790-03 84,680

Shrinkage (in/in) linear 12 x x 0.004
Izod Impact, notched (ft-lb/in) ASTM D256-05 1.78
Heat Deflection Temperature @ 66 psi ASTM D648-04 240 F (115.6 C)
Note: Reported physicals based on elevated temperature cured test specimens.

HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 35
Mix Ratio (by volume) 100 32
Specific Gravity @ 77 F (25 C) 1.06 1.16
Color Colorless Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 830 650
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 750
Work Time, 100g mass @ 77 F (25 C) 10 12 minutes
Gel Time 13 15 minutes
Demold Time @ 77 F (25 C) 2 3 hours
Properties above are typical and not for specifications.

RIGID FILLED & UNFILLED URETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION

An ISO-9001 Certified company

TC-872 A/B Page 2 of 2 Date: 06/29/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929

NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as to
merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”

CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but
the physical properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 180 F
(82 C). Do not exceed curing temperatures of 200 F (93 C). Support of the part may be required to prevent part
deformation during the heat curing process.

NOTE #1:
Important: Shake or re-blend both A and B components separately prior to weighing and combining. It is
advisable whenever possible to evacuate entrapped air prior to casting this system. The use of a de-airing agent can speed
up the process. BJB s AF-4 antifoam works best as the de-airing agent. In conjunction with these support products BJB
offers pigments in a wide variety of colors and stainless steel mixers called Jiffy Mixers . For additional information on
the use of this product, refer to BJB Guidelines for Handling Polyurethane Products. If further information is required,
please call BJB s technical staff for assistance.

NOTE #2:
The natural color of TC-872 A/B is a translucent pale yellow. When the cured material is exposed to direct sunlight or
strong UV light, the material will turn to an amber/orange color within approximately 2 hours.

STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of
shipment when properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-
sealing.

PACKAGING Part A Part B
Cubic Inches
per Kit
Quart Kits 2 lbs. 0.7 lb. 69
Gallon Kits 8 lbs. 2.8 lbs. 275
5-Gallon Kits 40 lbs. 14 lbs. 1,377
55-Gallon Drum Kits 400 lbs. 140 lbs. 13,770

SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or
prolonged contact on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved
safety glasses or goggles when handling this product.

IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not
recommended to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified
medical attention if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting
only as directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.

WARNING: This product can expose you to chemicals including Toluene diisocyanate, which are known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

Handling Guide