by | Sep 27, 2025
TC-805 A/B Page 1 of 2 Date: 03/20/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-805 A/B
75 SHORE D POLYURETHANE CASTING SYSTEM
TC-805 A/B is a 75 Shore D material that provides excellent physical properties. TC-805 A/B was designed for a wide
variety of part making applications. For a faster work time/demold time, consider TC-803.
RoHS/REACH Compliant 15-20 minute work time
3-4 hour demold time Excellent for vacuum or pressure casting
Odorless, clean white Low viscosity
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 75 2
Density (g/cc) ASTM D792-00 1.12
Cubic Inches per Pound N/A 25.6
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 6,800
Tensile Modulus (psi) ASTM D638-03 2.1 x 10
5
Elongation (%) ASTM D638-03 10
Flexural Strength (psi) ASTM D790-03 9,800
Flexural Modulus (psi) ASTM D790-03 2.42 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.66
Heat Deflection Temperature @ 66 psi ASTM D648-04 203 F (95 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 193 F (89.4 C)
Note: Reported physical properties based on elevated temperature cured test specimens.
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 50
Mix Ratio by volume 100 52
Specific Gravity @ 77 F (25 C) 1.10 1.06
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 75 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 160
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Demold Time @ 77 F (25 C) 3 4 hours
Properties above are typical and not for specifications.
TC-805 A/B Page 2 of 2 Date: 03/20/2023
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.”
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 whenever possible to evacuate entrapped air prior to casting this system. The use of de-airing agent, (BJB s
AF-4), can speed the process.
NOTE:
TC-805 A/B should be stored at ambient temperature and the TC-805 B component may require vacuum de-airing prior
to combining it with the A component. Evacuation of the mixed components is mandatory in order to achieve best
results. It is recommended that the A & B components as well as the mold should be pre-conditioned to a minimum of
80 F (26.7 C) prior to use. If further information is required, please contact BJB s technical staff for assistance.
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. 77
Gallon Kits 8 lbs. 4 lbs. 307
5-Gallon Kits 40 lbs. 20 lbs. 1,536
55-Gallon Drum Kits 440 lbs. 220 lbs. 16896
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
by | Sep 27, 2025
TC-804 A/B Page 1 of 2 Date: 01/04/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-804 A/B
75 SHORE D URETHANE SYSTEM
CASTING SYSTEM
TC-804 A/B is a user friendly, low viscosity, 75D rigid urethane plastic that cures to a white color. This system features a convenient 1:1 by
volume mixing ratio, 7-8 minutes working time, good heat resistance, and low moisture sensitivity producing tough, non-brittle castings. In
many cases vacuum degassing is not required thanks to its low viscosity and low surface tension properties. Excellent at reproducing fine
details without trapping air bubbles. Great for taxidermy, prototypes, model making, rotocasting, and parts of all kinds.
RoHS/REACH Compliant 7-8 minute work time
30-60 minute demold time Low Viscosity
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 75 5
Density (g/cc) ASTM D792-00 1.131
Cubic Inches per Pound N/A 25.54
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 6,000
Tensile Modulus (psi) ASTM D638-03 2.1 x 10
5
Elongation (%) ASTM D638-03 22
Flexural Strength (psi) ASTM D790-03 8,750
Flexural Modulus (psi) ASTM D790-03 2.3 x 10
5
Shrinkage (in/in) linear 12 x x 0.002
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.6
Heat Deflection Temperature @ 66 psi ASTM D648-04 170 F (76.7 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 155 F (68.3 C)
Dielectric Constant, 1 MHz ASTM D150-87 3.292
Dissipation Factor, 1 MHz ASTM D150-87 0.0117
*Note: Reported physical properties are based on test specimens cured 2-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 90
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.138 1.028
Color Pale Yellow Pale Yellow
Viscosity (cps) @ 77 F (25 C) Brookfield 70 600
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 200
Work Time, 100g mass @ 77 F (25 C) 7 8 minutes
Gel Time 8 9 minutes
Demold Time @ 77 F (25 C) 30 60 minutes
Properties above are typical and not for specifications.
TC-804 A/B Page 2 of 2 Date: 01/04/2023
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.”
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 2-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 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.
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. 1.8 lbs. 97
Gallon Kits 8 lbs. 7.2 lbs. 388
5 Gallon Kits 40 lbs. 36 lbs. 1,941
55-Gallon Drum Kits 440 lbs. 396 lbs. 21,351
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 is known to the State of California to cause birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
TC-804 A/B Page 1 of 2 Date: 01/04/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-804 A/B
75 SHORE D URETHANE SYSTEM
CASTING SYSTEM
TC-804 A/B is a user friendly, low viscosity, 75D rigid urethane plastic that cures to a white color. This system features a convenient 1:1 by
volume mixing ratio, 7-8 minutes working time, good heat resistance, and low moisture sensitivity producing tough, non-brittle castings. In
many cases vacuum degassing is not required thanks to its low viscosity and low surface tension properties. Excellent at reproducing fine
details without trapping air bubbles. Great for taxidermy, prototypes, model making, rotocasting, and parts of all kinds.
RoHS/REACH Compliant 7-8 minute work time
30-60 minute demold time Low Viscosity
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 75 5
Density (g/cc) ASTM D792-00 1.131
Cubic Inches per Pound N/A 25.54
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 6,000
Tensile Modulus (psi) ASTM D638-03 2.1 x 10
5
Elongation (%) ASTM D638-03 22
Flexural Strength (psi) ASTM D790-03 8,750
Flexural Modulus (psi) ASTM D790-03 2.3 x 10
5
Shrinkage (in/in) linear 12 x x 0.002
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.6
Heat Deflection Temperature @ 66 psi ASTM D648-04 170 F (76.7 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 155 F (68.3 C)
Dielectric Constant, 1 MHz ASTM D150-87 3.292
Dissipation Factor, 1 MHz ASTM D150-87 0.0117
*Note: Reported physical properties are based on test specimens cured 2-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 90
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.138 1.028
Color Pale Yellow Pale Yellow
Viscosity (cps) @ 77 F (25 C) Brookfield 70 600
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 200
Work Time, 100g mass @ 77 F (25 C) 7 8 minutes
Gel Time 8 9 minutes
Demold Time @ 77 F (25 C) 30 60 minutes
Properties above are typical and not for specifications.
TC-804 A/B Page 2 of 2 Date: 01/04/2023
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.”
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 2-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 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.
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. 1.8 lbs. 97
Gallon Kits 8 lbs. 7.2 lbs. 388
5 Gallon Kits 40 lbs. 36 lbs. 1,941
55-Gallon Drum Kits 440 lbs. 396 lbs. 21,351
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 is known to the State of California to cause birth defects or other reproductive harm. For more
information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
TC-803 A/B Page 1 of 2 Date: 07/05/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-803 A/B
75 SHORE D URETHANE SYSTEM
CASTING SYSTEM
TC-803 A/B produces a 75 Shore D material that provides excellent physical properties. TC-803 A/B was designed for a
wide variety of part making applications. For longer work times, consider TC-805.
RoHS/REACH Compliant 6-7 minute work time
1-2 hour demold time Excellent for vacuum or pressure casting
Odorless, clean white Low viscosity
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 75 2
Density (g/cc) ASTM D792-00 1.12
Cubic Inches per Pound N/A 25.6
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 6,800
Tensile Modulus (psi) ASTM D638-03 2.1 x 10
5
Elongation (%) ASTM D638-03 10
Flexural Strength (psi) ASTM D790-03 9,800
Flexural Modulus (psi) ASTM D790-03 2.42 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.66
Heat Deflection Temperature @ 66 psi ASTM D648-04 203 F (95 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 193 F (89.4 C)
Note: Reported physical properties based on elevated temperature cured test specimens.
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 50
Mix Ratio (by volume) 100 52
Specific Gravity @ 77 F (25 C) 1.10 1.06
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 75 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 160
Work Time, 100g mass @ 77 F (25 C) 6 7 minutes
Gel Time 7 8 minutes
Demold Time @ 77 F (25 C) 1 2 hours
Properties above are typical and not for specifications.
TC-803 A/B Page 2 of 2 Date: 07/05/2022
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. It is recommended that the A & B components as well as the mold should
be pre-conditioned to a minimum of 80 F (26.7 C) prior to use.
NOTE 1:
It is advisable whenever possible to evacuate entrapped air prior to casting this system. The use of de-airing agent, (BJB s
AF-4), can speed the process. Pressure casting can also aid in eliminating air bubbles in your parts.
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. 77
Gallon Kits 8 lbs. 4 lbs. 307
5 Gallon Kits 40 lbs. 20 lbs. 1,536
55-Gallon Drum Kits 440 lbs. 220 lbs. 16,896
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 and Naphthalene, 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
by | Sep 27, 2025
TC-802 A/B Page 1 of 2 Date: 04/20/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-802 A/B
73 SHORE D POLYURETHANE CASTING SYSTEM
TC-802 A/B is an easy to use rigid urethane casting material. TC-802 A/B is an extremely low viscosity system with
quick demold times. This system also exhibits good physical and heat capabilities. In addition, this system is
economically priced. The one-to-one volume ratio makes it perfect for use with dispensing equipment. TC-802 A/B is a
great product when ABS-type parts with a quick turnaround are required.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 73 2
Density (g/cc) ASTM D792-00 1.06
Cubic Inches per Pound N/A 26.5
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 4,180
Tensile Modulus (psi) ASTM D638-03 1.32 x 10
5
Elongation (%) ASTM D638-03 40
Flexural Strength (psi) ASTM D790-03 5,975
Flexural Modulus (psi) ASTM D790-03 1.48 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.42
Heat Deflection Temperature @ 66 psi ASTM D648-04 177 F (80.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 147 F (63.9 C)
Note: Reported physical properties based on elevated temperature cured test specimens.
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 90
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.10 0.99
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 40 120
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 80
Work Time, 100g mass @ 77 F (25 C) 1.5 minutes
Demold Time @ 77 F (25 C) 10 minutes
Properties above are typical and not for specifications.
TC-802 A/B Page 2 of 2 Date: 04/20/2021
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.”
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.
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. 1.8 lbs. 101
Gallon Kits 8 lbs. 7.2 lbs. 403
5-Gallon Kits 40 lbs. 36 lbs. 2,014
55-Drum Kits 400 lbs. 360 lbs. 20,140
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.
Handling Guide
by | Sep 27, 2025
TC-802 A/B Page 1 of 2 Date: 04/20/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-802 A/B
73 SHORE D POLYURETHANE CASTING SYSTEM
TC-802 A/B is an easy to use rigid urethane casting material. TC-802 A/B is an extremely low viscosity system with
quick demold times. This system also exhibits good physical and heat capabilities. In addition, this system is
economically priced. The one-to-one volume ratio makes it perfect for use with dispensing equipment. TC-802 A/B is a
great product when ABS-type parts with a quick turnaround are required.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240-04e1 73 2
Density (g/cc) ASTM D792-00 1.06
Cubic Inches per Pound N/A 26.5
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638-03 4,180
Tensile Modulus (psi) ASTM D638-03 1.32 x 10
5
Elongation (%) ASTM D638-03 40
Flexural Strength (psi) ASTM D790-03 5,975
Flexural Modulus (psi) ASTM D790-03 1.48 x 10
5
Shrinkage (in/in) linear 12 x x 0.006
Izod Impact, notched (ft-lb/in) ASTM D256-05 0.42
Heat Deflection Temperature @ 66 psi ASTM D648-04 177 F (80.6 C)
Heat Deflection Temperature @ 264 psi ASTM D648-04 147 F (63.9 C)
Note: Reported physical properties based on elevated temperature cured test specimens.
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 90
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.10 0.99
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 40 120
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 80
Work Time, 100g mass @ 77 F (25 C) 1.5 minutes
Demold Time @ 77 F (25 C) 10 minutes
Properties above are typical and not for specifications.
TC-802 A/B Page 2 of 2 Date: 04/20/2021
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.”
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.
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. 1.8 lbs. 101
Gallon Kits 8 lbs. 7.2 lbs. 403
5-Gallon Kits 40 lbs. 36 lbs. 2,014
55-Drum Kits 400 lbs. 360 lbs. 20,140
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.
Handling Guide
by | Sep 27, 2025
TC-800 A/B Page 1 of 2 Date: 06/28/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-800 A/B
RIGID 75 SHORE D POLYURETHANE
CASTING SYSTEM
TC-800 A/B is an easy to use rigid urethane casting material. TC-800 A/B exhibits excellent physical properties, very low
viscosity, high heat capability and quick demold times. In addition, this system is economically priced. The one-to-one volume
ratio makes it perfect for use with dispensing equipment. TC-800 A/B is a great product when ABS-type parts with a quick
turnaround are required. Features a non-mercury based catalyst system.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240 75 2
Density (g/cc) ASTM D792 1.11
Cubic Inches per Pound N/A 25.7
Color/Appearance Visual White/Opaque
Tensile Strength (psi) ASTM D638 6,100
Tensile Modulus (psi) ASTM D638 1.9 x 10
5
Elongation (%) ASTM D638 8
Flexural Strength (psi) ASTM D790 9,250
Flexural Modulus (psi) ASTM D790 2.3 x 10
5
Shrinkage (in/in) linear 12 x x 0.007
Izod Impact, notched (ft-lb/in) ASTM D256 0.5
Heat Deflection Temperature @ 66 psi ASTM D648 185 5 F (85 3 C)
Heat Deflection Temperature @ 264 psi ASTM D648 160 5 F (71 3 C)
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 88
Mix Ratio (by volume) 100 100
Specific Gravity @ 77 F (25 C) 1.15 1.01
Color Pale Yellow Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield 60 375
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 200
Work Time, 100g mass @ 77 F (25 C) 2 minutes
Demold Time @ 77 F (25 C) 60 minutes
Properties above are typical and not for specifications.
TC-800 A/B Page 2 of 2 Date: 06/28/2021
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.”
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.
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. 1.8 lbs. 98
Gallon Kits 8 lbs. 7.1 lbs. 388
5-Gallon Kits 40 lbs. 35.2 lbs. 1,933
Drum Kits 400 lbs. 352 lbs. 19,326
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
by | Sep 27, 2025
TC-680 A/B Page 1 of 2 Date: 06/10/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-680 A/B
80 SHORE A POLYURETHANE ELASTOMER
TC-680 A/B is a two-component polyurethane elastomer compound specifically designed for casting applications. This product is a
safe, easy-to-handle, room temperature mixing and curing system that contains no TDI, MDA, or MOCA. The low shrinkage,
superior toughness, and excellent detail reproduction of TC-680 A/B makes this system ideal for general purpose castings and quality
tooling operations.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore A ASTM D2240 80 5
Density (g/cc) ASTM D792 1.04
Cubic Inches per Pound N/A 25.9
Color/Appearance Visual Pale Green/Clear
Tensile Strength (psi) ASTM D412 1,475
Tensile Modulus (psi) ASTM D412 4,380
Elongation (%) ASTM D412 715
Tear Strength (pli) ASTM D624 225
Shrinkage (in/in) linear 12 x x 0.006
Water Immersion (%) 24-hour weight gain N/A 3.7
Insulation Resistance (ohms) ASTM D257 3 x 10
12
Surface Resistivity (ohm-cm) ASTM D257 5 x 10
15
Dielectric Constant, 10
3
Hz ASTM D150 3.9
Dissipation Factor, 10
3
Hz ASTM D150 0.01
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 50
Mix Ratio by volume 100 49
Specific Gravity @ 77 F (25 C) 1.06 1.09
Color Colorless Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 6,000 60
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 2,100
Work Time, 100g mass @ 77 F (25 C) 20 minutes
Gel Time 25 minutes
Demold Time @ 77 F (25 C) 4 6 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
TC-680 A/B Page 2 of 2 Date: 06/10/2021
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.”
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).
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
Quart Kits 2 lbs. 1 lb. 78
Gallon Kits 8 lbs. 4 lbs. 311
5-Gallon Kits 40 lbs. 20 lbs. 1,554
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 Butyl benzyl phthalate and Phenyl mercury neodecanoate,
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
by | Sep 27, 2025
by | Sep 27, 2025
