by | Sep 27, 2025
TC-266 A/B Page 1 of 2 Date: 09/08/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-266 A/B
POLYSOFT 1
3-5 lb. VARIABLE DENSITY, FLEXIBLE FOAM
TC-266 A/B PolySoft 1 is a two-component, flexible polyurethane foam. The cured material feels similar to a soft furniture cushion.
BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors. End users can adjust firmness with a
slight ratio change as listed below. Common applications are prototypes, prosthetics, medical training devices, movie special effects
props and more. This material is frequently molded behind flexible polyurethane skin materials such as BJB s FP, F, M, and L line or
other BJB elastomers.
Note: TC-266 at a ratio of 50/100 pbw produces a soft, quick recovery foam with a density of 3 pounds. At 30/100 pbw, the result
will be a softer, slower recovery foam with a density of 5 pounds.
HANDLING PROPERTIES
3# DENSITY
For a soft resilient foam
5# DENSITY
For an extremely soft foam
Mix Ratio (by weight)
50 parts A
100 parts B
30 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
3 5
Density, (free rise) kg/m
3
48 80
Cream Time @ 77 F (25 C) 15 20 seconds 25 30 seconds
Rise Time 75 90 seconds 90 100 seconds
Demold Time @ 77 F (25 C)
(Depending on part size and cross section)
20 30 minutes 20 30 minutes
PART A PART B
Specific Gravity @ 77 (25 C) 1.19 1.02
Viscosity, (cps) @ 77 F (25 C) Brookfield 205 1200
*The density and processing times listed are derived from a statistical average of long-term testing. We recommend a test mix be
performed before use.
MIXING:
Mixing is best with a high speed drill or air motor with a Jiffy Mixer .
The blade shears the material and provides a thorough mix within the 8
to 10 second period generally established for achieving a uniform blend.
Mixing too long or not enough can result in poor material performance.
Once mixed, the material should be immediately poured. If too much
time goes by, the foam will rise in the mix container and the batch may
be lost.
When pouring the foam, avoid trying to scrape any material from the
container sidewalls or bottom. Generally, there isn t enough time to do
this and more importantly there may be material that is not well mixed
on the container sides.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-266 A/B Page 2 of 2 Date: 09/08/2020
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.”
MOLD PREPARATIONS:
The mold should be well sealed and released. Foams will seek moisture through release waxes and stick to mold surfaces if an
insufficient seal exists. Sealing can be accomplished by using sanding sealer or other similar sealers. The mold should be warmed
to between 75-85 F (24-29 C) prior to casting the first part. Once a mold is heated and cycled it will maintain heat for continued
production.
Release systems vary in accordance to the type of mold used, however as a general product we recommend Challenge 95 Release
or a mold release paste wax from our line of products. As a rule, silicone based releases do not work with either the flexible or
rigid foam groups of materials. The silicone migrates and often causes poor surface conditions. Silicone releases will also inhibit
the adhesion of paints and over-coatings.
The best molds for production (rather than prototype or limited production parts) are either machined aluminum molds or epoxy
molds. Epoxy molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-266 A/B can be removed from the mold within a 30-minute timeframe. However, smaller masses will develop lower
exothermic reaction and may require a slightly longer cure time. It is recommended that foam parts be crushed or squeezed after
demolding to remove residual gases remaining in the cell structure. This will help to reduce post shrinkage and aid in reducing
natural odors from the foam part.
NOTE:
The B component should be gently shaken or stirred to re-blend prior to mixing with part A .
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.
When first using the material, a sample should be visually inspected to be sure no crystallization is present. Crystallization of either
the resin or hardener can occur during shipment in cold weather. If the resin appears cloudy or the hardener becomes gummy, the
component should be warmed with the containers open and stirred until the material returns to its proper smooth liquid consistency.
PACKAGING Part A Part B
Quart Kits 1 lbs. 2 lbs.
Gallon Kits 4 lbs. 8 lbs.
5-Gallon Kits 20 lbs. 40 lbs.
55-Gallon Drum Kits 225 lbs. 450 lbs.
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 Diethanolamine, which are known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Scan QR code to see our How-to-
Foam Video
by | Sep 27, 2025
TC-266 A/B Page 1 of 2 Date: 09/08/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-266 A/B
POLYSOFT 1
3-5 lb. VARIABLE DENSITY, FLEXIBLE FOAM
TC-266 A/B PolySoft 1 is a two-component, flexible polyurethane foam. The cured material feels similar to a soft furniture cushion.
BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors. End users can adjust firmness with a
slight ratio change as listed below. Common applications are prototypes, prosthetics, medical training devices, movie special effects
props and more. This material is frequently molded behind flexible polyurethane skin materials such as BJB s FP, F, M, and L line or
other BJB elastomers.
Note: TC-266 at a ratio of 50/100 pbw produces a soft, quick recovery foam with a density of 3 pounds. At 30/100 pbw, the result
will be a softer, slower recovery foam with a density of 5 pounds.
HANDLING PROPERTIES
3# DENSITY
For a soft resilient foam
5# DENSITY
For an extremely soft foam
Mix Ratio (by weight)
50 parts A
100 parts B
30 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
3 5
Density, (free rise) kg/m
3
48 80
Cream Time @ 77 F (25 C) 15 20 seconds 25 30 seconds
Rise Time 75 90 seconds 90 100 seconds
Demold Time @ 77 F (25 C)
(Depending on part size and cross section)
20 30 minutes 20 30 minutes
PART A PART B
Specific Gravity @ 77 (25 C) 1.19 1.02
Viscosity, (cps) @ 77 F (25 C) Brookfield 205 1200
*The density and processing times listed are derived from a statistical average of long-term testing. We recommend a test mix be
performed before use.
MIXING:
Mixing is best with a high speed drill or air motor with a Jiffy Mixer .
The blade shears the material and provides a thorough mix within the 8
to 10 second period generally established for achieving a uniform blend.
Mixing too long or not enough can result in poor material performance.
Once mixed, the material should be immediately poured. If too much
time goes by, the foam will rise in the mix container and the batch may
be lost.
When pouring the foam, avoid trying to scrape any material from the
container sidewalls or bottom. Generally, there isn t enough time to do
this and more importantly there may be material that is not well mixed
on the container sides.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-266 A/B Page 2 of 2 Date: 09/08/2020
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.”
MOLD PREPARATIONS:
The mold should be well sealed and released. Foams will seek moisture through release waxes and stick to mold surfaces if an
insufficient seal exists. Sealing can be accomplished by using sanding sealer or other similar sealers. The mold should be warmed
to between 75-85 F (24-29 C) prior to casting the first part. Once a mold is heated and cycled it will maintain heat for continued
production.
Release systems vary in accordance to the type of mold used, however as a general product we recommend Challenge 95 Release
or a mold release paste wax from our line of products. As a rule, silicone based releases do not work with either the flexible or
rigid foam groups of materials. The silicone migrates and often causes poor surface conditions. Silicone releases will also inhibit
the adhesion of paints and over-coatings.
The best molds for production (rather than prototype or limited production parts) are either machined aluminum molds or epoxy
molds. Epoxy molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-266 A/B can be removed from the mold within a 30-minute timeframe. However, smaller masses will develop lower
exothermic reaction and may require a slightly longer cure time. It is recommended that foam parts be crushed or squeezed after
demolding to remove residual gases remaining in the cell structure. This will help to reduce post shrinkage and aid in reducing
natural odors from the foam part.
NOTE:
The B component should be gently shaken or stirred to re-blend prior to mixing with part A .
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.
When first using the material, a sample should be visually inspected to be sure no crystallization is present. Crystallization of either
the resin or hardener can occur during shipment in cold weather. If the resin appears cloudy or the hardener becomes gummy, the
component should be warmed with the containers open and stirred until the material returns to its proper smooth liquid consistency.
PACKAGING Part A Part B
Quart Kits 1 lbs. 2 lbs.
Gallon Kits 4 lbs. 8 lbs.
5-Gallon Kits 20 lbs. 40 lbs.
55-Gallon Drum Kits 225 lbs. 450 lbs.
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 Diethanolamine, which are known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Scan QR code to see our How-to-
Foam Video
by | Sep 27, 2025
TC-266 A/B Page 1 of 2 Date: 09/08/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-266 A/B
POLYSOFT 1
3-5 lb. VARIABLE DENSITY, FLEXIBLE FOAM
TC-266 A/B PolySoft 1 is a two-component, flexible polyurethane foam. The cured material feels similar to a soft furniture cushion.
BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors. End users can adjust firmness with a
slight ratio change as listed below. Common applications are prototypes, prosthetics, medical training devices, movie special effects
props and more. This material is frequently molded behind flexible polyurethane skin materials such as BJB s FP, F, M, and L line or
other BJB elastomers.
Note: TC-266 at a ratio of 50/100 pbw produces a soft, quick recovery foam with a density of 3 pounds. At 30/100 pbw, the result
will be a softer, slower recovery foam with a density of 5 pounds.
HANDLING PROPERTIES
3# DENSITY
For a soft resilient foam
5# DENSITY
For an extremely soft foam
Mix Ratio (by weight)
50 parts A
100 parts B
30 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
3 5
Density, (free rise) kg/m
3
48 80
Cream Time @ 77 F (25 C) 15 20 seconds 25 30 seconds
Rise Time 75 90 seconds 90 100 seconds
Demold Time @ 77 F (25 C)
(Depending on part size and cross section)
20 30 minutes 20 30 minutes
PART A PART B
Specific Gravity @ 77 (25 C) 1.19 1.02
Viscosity, (cps) @ 77 F (25 C) Brookfield 205 1200
*The density and processing times listed are derived from a statistical average of long-term testing. We recommend a test mix be
performed before use.
MIXING:
Mixing is best with a high speed drill or air motor with a Jiffy Mixer .
The blade shears the material and provides a thorough mix within the 8
to 10 second period generally established for achieving a uniform blend.
Mixing too long or not enough can result in poor material performance.
Once mixed, the material should be immediately poured. If too much
time goes by, the foam will rise in the mix container and the batch may
be lost.
When pouring the foam, avoid trying to scrape any material from the
container sidewalls or bottom. Generally, there isn t enough time to do
this and more importantly there may be material that is not well mixed
on the container sides.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-266 A/B Page 2 of 2 Date: 09/08/2020
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.”
MOLD PREPARATIONS:
The mold should be well sealed and released. Foams will seek moisture through release waxes and stick to mold surfaces if an
insufficient seal exists. Sealing can be accomplished by using sanding sealer or other similar sealers. The mold should be warmed
to between 75-85 F (24-29 C) prior to casting the first part. Once a mold is heated and cycled it will maintain heat for continued
production.
Release systems vary in accordance to the type of mold used, however as a general product we recommend Challenge 95 Release
or a mold release paste wax from our line of products. As a rule, silicone based releases do not work with either the flexible or
rigid foam groups of materials. The silicone migrates and often causes poor surface conditions. Silicone releases will also inhibit
the adhesion of paints and over-coatings.
The best molds for production (rather than prototype or limited production parts) are either machined aluminum molds or epoxy
molds. Epoxy molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-266 A/B can be removed from the mold within a 30-minute timeframe. However, smaller masses will develop lower
exothermic reaction and may require a slightly longer cure time. It is recommended that foam parts be crushed or squeezed after
demolding to remove residual gases remaining in the cell structure. This will help to reduce post shrinkage and aid in reducing
natural odors from the foam part.
NOTE:
The B component should be gently shaken or stirred to re-blend prior to mixing with part A .
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.
When first using the material, a sample should be visually inspected to be sure no crystallization is present. Crystallization of either
the resin or hardener can occur during shipment in cold weather. If the resin appears cloudy or the hardener becomes gummy, the
component should be warmed with the containers open and stirred until the material returns to its proper smooth liquid consistency.
PACKAGING Part A Part B
Quart Kits 1 lbs. 2 lbs.
Gallon Kits 4 lbs. 8 lbs.
5-Gallon Kits 20 lbs. 40 lbs.
55-Gallon Drum Kits 225 lbs. 450 lbs.
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 Diethanolamine, which are known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Scan QR code to see our How-to-
Foam Video
by | Sep 27, 2025
TC-1650 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
EPOXY RESIN SYSTEMS
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-1650 A/B
HI-TEMP ALUMINUM FILLED CASTING RESIN SYSTEM
TC-1650 A/B is an aluminum powder filled epoxy casting resin system that provides service temperatures to 350 F (177 C).
TC-1650 A/B is most commonly used for the construction of molds that require good heat conductivity, outstanding durability
and provide production run capability. The majority of applications for TC-1650 A/B are used in conjunction with other
materials in developing composite mold structures; however, the TC-1650 A/B is frequently used by itself.
Molds for casting polyurethane, epoxy, polyester, and other materials
Vacuum form molds
Wax casting molds
Compression molds
MOLD CONSTRUCTION :
The composites approach to mold construction uses TC-1650 A/B as a binder for SC-125 Aluminum Granules. This mixture is
cast behind a high temperature surface coat, TC-1611 A/B or TC-1618 A/B. This combination provides several benefits. The
high temperature surface coat provides exceptional durability while the aluminum granule addition to the TC-1650 A/B vastly
increases heat conductivity and reduces shrinkage. Using this method will also decrease cost. Generally, the SC-125 Aluminum
Granule is added at the rate of 60-80 parts by weight to 100 parts by weight mixed resin and hardener. Larger amounts of
aluminum granules are added when making vacuum form molds, casting molds, foam molds and other low pressure compression
type molds.
CAUTION: If casting TC-1650 A/B requires sections to be thicker than 1 , use TC-1651 A/B for thicknesses up to 3 . Request
BJB technical advice for additional assistance.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240 90 2
Density (g/cc) ASTM D792 1.76
Cubic Inches per Pound N/A 17
Color/Appearance Visual Gray
Tensile Strength (psi) ASTM D638 8,150
Flexural Strength (psi) ASTM D790 11,100
Flexural Modulus (psi) ASTM D790 1.06 x 10
6
Shrinkage (in/in) linear ASTM D2566 0.002
Heat Deflection Temperature @ 264 psi ASTM D648 283 F (139.4 C)
Compressive Strength (psi) ASTM D695 27,800
Coefficient of Thermal Expansion (in/in/F ) ASTM D3386 1.9 x 10
-5
TC-1650 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.”
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 7
Mix Ratio by volume 100 13
Specific Gravity @ 77 F (25 C) 1.8 0.98
Color Gray Amber
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 15,500
Work Time, 1 lb. mass @ 77 F (25 C) 60 minutes
Gel Time 90 minutes
Demold Time @ 77 F (25 C) 16 24 hours
Properties above are typical and not for specifications.
POST CURING:
All physical property results are based upon post-curing this system. The following procedure provides the best results:
75 F (24 C) for 12 to 20 Hours
150 F (66 C) for 1.5 to 2 Hours
250 F (121 C) for 2 Hours
350 F (177 C) for 1 Hour
Turn off oven and allow to cool in the oven. This procedure provides further stabilization and eliminates possible thermal shocks for cavity
tools that are temporarily clamped together for curing purposes.
STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 12 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
Square Inches per Kit
Coverage (@ 1/16 Thick)
Quart Kits 2.5 lbs. 3 oz. 46
Gallon Kits 10 lbs. 12 oz. 183
5-Gallon Kits 50 lbs. 3.5 lbs. 910
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 4,4 -Isopropylidenediphenol, 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.
by | Sep 27, 2025
TC-1650 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
EPOXY RESIN SYSTEMS
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-1650 A/B
HI-TEMP ALUMINUM FILLED CASTING RESIN SYSTEM
TC-1650 A/B is an aluminum powder filled epoxy casting resin system that provides service temperatures to 350 F (177 C).
TC-1650 A/B is most commonly used for the construction of molds that require good heat conductivity, outstanding durability
and provide production run capability. The majority of applications for TC-1650 A/B are used in conjunction with other
materials in developing composite mold structures; however, the TC-1650 A/B is frequently used by itself.
Molds for casting polyurethane, epoxy, polyester, and other materials
Vacuum form molds
Wax casting molds
Compression molds
MOLD CONSTRUCTION :
The composites approach to mold construction uses TC-1650 A/B as a binder for SC-125 Aluminum Granules. This mixture is
cast behind a high temperature surface coat, TC-1611 A/B or TC-1618 A/B. This combination provides several benefits. The
high temperature surface coat provides exceptional durability while the aluminum granule addition to the TC-1650 A/B vastly
increases heat conductivity and reduces shrinkage. Using this method will also decrease cost. Generally, the SC-125 Aluminum
Granule is added at the rate of 60-80 parts by weight to 100 parts by weight mixed resin and hardener. Larger amounts of
aluminum granules are added when making vacuum form molds, casting molds, foam molds and other low pressure compression
type molds.
CAUTION: If casting TC-1650 A/B requires sections to be thicker than 1 , use TC-1651 A/B for thicknesses up to 3 . Request
BJB technical advice for additional assistance.
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240 90 2
Density (g/cc) ASTM D792 1.76
Cubic Inches per Pound N/A 17
Color/Appearance Visual Gray
Tensile Strength (psi) ASTM D638 8,150
Flexural Strength (psi) ASTM D790 11,100
Flexural Modulus (psi) ASTM D790 1.06 x 10
6
Shrinkage (in/in) linear ASTM D2566 0.002
Heat Deflection Temperature @ 264 psi ASTM D648 283 F (139.4 C)
Compressive Strength (psi) ASTM D695 27,800
Coefficient of Thermal Expansion (in/in/F ) ASTM D3386 1.9 x 10
-5
TC-1650 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.”
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 7
Mix Ratio by volume 100 13
Specific Gravity @ 77 F (25 C) 1.8 0.98
Color Gray Amber
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 15,500
Work Time, 1 lb. mass @ 77 F (25 C) 60 minutes
Gel Time 90 minutes
Demold Time @ 77 F (25 C) 16 24 hours
Properties above are typical and not for specifications.
POST CURING:
All physical property results are based upon post-curing this system. The following procedure provides the best results:
75 F (24 C) for 12 to 20 Hours
150 F (66 C) for 1.5 to 2 Hours
250 F (121 C) for 2 Hours
350 F (177 C) for 1 Hour
Turn off oven and allow to cool in the oven. This procedure provides further stabilization and eliminates possible thermal shocks for cavity
tools that are temporarily clamped together for curing purposes.
STORAGE:
Store at ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 12 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
Square Inches per Kit
Coverage (@ 1/16 Thick)
Quart Kits 2.5 lbs. 3 oz. 46
Gallon Kits 10 lbs. 12 oz. 183
5-Gallon Kits 50 lbs. 3.5 lbs. 910
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 4,4 -Isopropylidenediphenol, 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.
by | Sep 27, 2025
TC-1630 A/B Page 1 of 2 Date: 05/20/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
RIGID FILLED POLYURETHANES
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-1630 A/B
ULTRACAST II
TC-1630 is very hard, tough, fast setting filled 2-part polyurethane casting resin system which is ideal for: Foam Latex Molds,
Vacuum Forming Tools, Silicone Prosthetic Molds, Industrial Molds, Rigid Parts, Composite Tools, and much more! TC-1630 is
unique because it exhibits very low shrinkage when cast in mass, yet still cures quickly for producing molds and parts in a
production setting. Its unique formulation also allows it to be cast into alginate life-cast molds without reaction to the presence of
moisture.
Economical Excellent Detail Reproduction
Low Shrinkage / Low Exotherm Low Moisture Sensitivity
Fast Cure Time Works Well with BJB Platinum and Tin Silicones*
PHYSICAL PROPERTIES TEST METHOD TEST RESULTS
Hardness, Shore D ASTM D2240 80 2
Density (g/cc) ASTM D792 1.80
Cubic Inches per Pound N/A 16.5
Color/Appearance Visual Gray/Opaque
Flexural Strength (psi) ASTM D790 6,221
Compressive Strength (psi) ASTM D695 8,400
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.002
Heat Deflection Temperature @ 66psi ASTM D648-04 211 F (99.4 C)
Heat Deflection Temperature @ 264psi ASTM D648-04 190 F (87.8 C)
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 100
Mix Ratio (by volume) 93 100
Specific Gravity 1.73 1.60
Color Black White
Viscosity (cps) @ 77 F (25 C) Brookfield 900 1,300
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,100
Work Time, 100g mass @ 77 F (25 C) 5 6 minutes
Gel Time 7 8 minutes
Demold Time @ 77 F (25 C) 1 hour
Properties above are typical and not for specifications.
TC-1630 A/B Page 2 of 2 Date: 05/20/2023
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.”
*NOTE:
BJB has tested our Platinum and Tin Silicones with great results but due to the temperamental nature of some Platinum Silicone
materials, a small test is recommended when trying unknown systems. Be sure molds are sufficiently cured and wash new molds
with warm soap and water for best results. Contact BJB s technical staff if processing advice or cured samples are needed.
MIXING AND CASTING NOTES:
TC-1630 A/B is a filled system and will settle in storage. Thoroughly pre-mix A and B separately (preferably with a Jiffy Mixer)
before measuring out equal parts of A and B by weight. Thoroughly mix with a flat, wide mixing spatula or drill mix with a Jiffy
Mixer, being sure material on the sides and bottom are well mixed. After each use, remaining material in the cans should be
purged with dry nitrogen and tightly sealed before storage to help preserve shelf life.
TC-1630 A/B can typically be demolded and handled an hour or two after casting. It may also be cast very thick (8-10 or more)
without creating excessive exotherm, though thicker sections (e.g. over 4 inches) can generate increased shrinkage. To avoid this
problem, casting around a displacement core or stage pouring is recommended.
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 3 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 10 lbs. 10 lbs. 330
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 are known to the State of California
to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
Product Information
Units Test Method Results
Shore D ASTM D-2240 70
psi ASTM D-412 6,800
psi ASTM D-412 375,000
% ASTM D-412 5
pli ASTM D-624 180
– Visual Natural/Pigmented
Units Component A Component B
(A/B) 50 50
(A/B) 52 48
g/mL 1.16 – 1.18 1.06 – 1.08
cPs 400 – 600 900 – 1300
Visual Pale Yellow Opaque/White
Seconds
Seconds
Hours
Storage and Shelf Life
Packaging
Component A: 490 lbNet Weight
Component B: 435 lbNet Weight
Physical Properties (Final Product)
SPL-H 4072
TECHNICAL DATA SHEET
Polyurethane Polyurea Spray Elastomer System
SPL-H 4072 is a 100% solids high-performance, multi-purpose polyurethane coating designed for processing
through plural component, high-pressure dispensing equipment. Once fully cured, this material is tough and
hard with excellent tensile strength with moderate impact resistance. SPL-H 4072 was designed to be
sprayed over EPS and Urethane Board stock. SPL-H 4072 is also an excellent product to replace Polyester
Resins and Fiberglass.
Mix Ratio by Weight
Specific Gravity @ 75 F
Viscocity @ 75 F
Shore Hardness
Tensile Strength
Flexural Modulus
Elongation
Tear Strength
55 gallon steel drum (open top)
For more information contact Eteco, Inc. (714) 480-1370 | info@etecoinc.com
www.etecoinc.com
Non-Warranty: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of Eteco, Inc. The data on
these sheets relates only to the specific material designated herein. Eteco, Inc. assumes no legal responsibility for use or reliance upon this data. The user
should conduct sufficient investigation to establish the suitability of any product for its intended use.
Color
*Final properties will be reached in a course of several days. Properties are typical and not for specifications*
Components should be kept well sealed in a dry place from 70 to 90 F. Shelf life of unopened containers is
six (6) months from manufacturing date. Mix Component B well prior to each use. Purge opened containers
with dry nitrogen before resealing. Refer to product SDS for more information.
55 gallon steel drum (closed top)
Tack Free Time 100 – 120
90% Cure Time* 24
Color
Gel Time @ 75 F 80 – 90
Handling Characteristics
Mix Ratio by Volume
by | Sep 27, 2025
Product Information
Units Test Method Results
Shore D ASTM D-2240 70
psi ASTM D-412 6,800
psi ASTM D-412 375,000
% ASTM D-412 5
pli ASTM D-624 180
– Visual Natural/Pigmented
Units Component A Component B
(A/B) 50 50
(A/B) 52 48
g/mL 1.16 – 1.18 1.06 – 1.08
cPs 400 – 600 900 – 1300
Visual Pale Yellow Opaque/White
Seconds
Seconds
Hours
Storage and Shelf Life
Packaging
Component A: 490 lbNet Weight
Component B: 435 lbNet Weight
Physical Properties (Final Product)
SPL-H 4072
TECHNICAL DATA SHEET
Polyurethane Polyurea Spray Elastomer System
SPL-H 4072 is a 100% solids high-performance, multi-purpose polyurethane coating designed for processing
through plural component, high-pressure dispensing equipment. Once fully cured, this material is tough and
hard with excellent tensile strength with moderate impact resistance. SPL-H 4072 was designed to be
sprayed over EPS and Urethane Board stock. SPL-H 4072 is also an excellent product to replace Polyester
Resins and Fiberglass.
Mix Ratio by Weight
Specific Gravity @ 75 F
Viscocity @ 75 F
Shore Hardness
Tensile Strength
Flexural Modulus
Elongation
Tear Strength
55 gallon steel drum (open top)
For more information contact Eteco, Inc. (714) 480-1370 | info@etecoinc.com
www.etecoinc.com
Non-Warranty: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of Eteco, Inc. The data on
these sheets relates only to the specific material designated herein. Eteco, Inc. assumes no legal responsibility for use or reliance upon this data. The user
should conduct sufficient investigation to establish the suitability of any product for its intended use.
Color
*Final properties will be reached in a course of several days. Properties are typical and not for specifications*
Components should be kept well sealed in a dry place from 70 to 90 F. Shelf life of unopened containers is
six (6) months from manufacturing date. Mix Component B well prior to each use. Purge opened containers
with dry nitrogen before resealing. Refer to product SDS for more information.
55 gallon steel drum (closed top)
Tack Free Time 100 – 120
90% Cure Time* 24
Color
Gel Time @ 75 F 80 – 90
Handling Characteristics
Mix Ratio by Volume
by | Sep 27, 2025
Product Information
Units Test Method Results
Shore D ASTM D-2240 65 +/- 3
psi ASTM D-412 5,200
psi ASTM D-412 –
% ASTM D-412 70
pli ASTM D-624 180
– Visual Natural/Pigmented
Units Component A Component B
(A/B) 50 50
(A/B) 52 48
g/mL 1.17 – 1.19 1.07 – 1.09
cPs 500 – 700 900 – 1300
Visual Pale Yellow Opaque/White
Seconds
Seconds
Hours
Storage and Shelf Life
Packaging
Component A: 490 lbNet Weight
Component B: 435 lbNet Weight
Physical Properties (Final Product)
SPL-H 4060
TECHNICAL DATA SHEET
Polyurethane Polyurea Spray Elastomer System
SPL-H 4060 is a high-performance, multi-purpose, polyurethane coating designed for processing
through plural component, high-pressure dispensing equipment. Once fully cured, this material is
tough, flexible, and has high impact and tear resistance. SPL-H 4060 exhibits good weather
resistance and gloss retention. Contact an Eteco, Inc. representative for specific material compatibility,
immersion service suitability and substrate preparation.
Mix Ratio by Weight
Specific Gravity @ 75 F
Viscocity @ 75 F
Shore Hardness
Tensile Strength
Tensile Modulus
Elongation
Tear Strength
55 gallon steel drum (open top)
For more information contact Eteco, Inc. (714) 480-1370 | info@etecoinc.com
www.etecoinc.com
Non-Warranty: This information is furnished without warranty, expressed or implied, except that is accurate to the best knowledge of Eteco, Inc.
The data on thes e s heets rel ates onl y to the s pec i fi c materi al des i gnated herei n. Etec o, Inc . as s umes no l egal res pons i bi l i ty for us e or rel i anc e
upon this data. The user should conduct sufficient investigation to establish the suitability of any product for its intended use.
Color
*Final properties will be reached in a course of several days. Properties are typical and not for specifications*
Components should be kept well sealed in a dry place from 70 to 90 F. Shelf life of unopened
containers is six (6) months from manufacturing date. Mix Component B well prior to each use. Purge
opened containers with dry nitrogen before resealing. Refer to product SDS for more information.
55 gallon steel drum (closed top)
Tack Free Time 25
90% Cure Time* 24
Color
Gel Time @ 130 F to 150 F 10 – 15
Handling Characteristics
Mix Ratio by Volume
by | Sep 27, 2025
SP-205 A/B Page 1 of 2 Date: 10/10/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
SP-205 A/B
80 SHORE D SPRAY APPLIED POLYURETHANE
SP-205 A/B is a two component rigid polyurethane material designed to provide high strength, high impact, and good heat resistance
for the fabrication of structural parts, composite type structures, and for coatings that serve many purposes.
SP-205 A/B can be sprayed with conventional plural component high pressure spray equipment or with BJB s CPE-25 and CPE-40
pneumatic hand held spray guns.
Used for rapid production of parts, composite structures, and molds
Provides excellent surface finishes built on polyurethane rigid foam and styrofoam
Superior adhesion to a wide variety of substrates, most notably rigid foams and wood
Excellent impact resistance coupled with high flexural strength
Provides very fine detail reproduction
Convenient 1:1 by volume mix ratio
Movie Special Effects Props Prototype Models Theming
Art Industry Automotive Industry Architectural Industry
PHYSICAL PROPERTIES TEST METHOD
ELEVATED TEMPERATURE
CURE*
Hardness, Shore D ASTM D2240-04e1 80 5
Density (g/cc) ASTM D792-00 1.175
Cubic Inches per Pound N/A 24.78
Color/Appearance Visual Gray / Opaque
Tensile Strength (psi) ASTM D638-03 5,900
Tensile Modulus (psi) ASTM D638-03 234,000
Elongation (%) ASTM D638-03 22
Flexural Strength (psi) ASTM D790-03 8,400
Flexural Modulus (psi) ASTM D790-03 220,000
Shrinkage (in/in) linear 12 x1/2 x1/2 0.0082
Izod Impact (ft-lb/in) notched ASTM D256-05 0.77
Heat Deflection Temperature (66 psi) ASTM D648-04 190 F (87.8 C)
Heat Deflection Temperature (264 psi) ASTM D648-04 148 F (64.4 C)
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 180 F (82 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) 1.18 1.052
Color Yellow Gray
Viscosity (cps) @ 77 F (25 C) Brookfield 325 1,000
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 650
Gel Time 30 35 seconds
Demold Time @ 77 F (25 C) 30 45 minutes
Properties above are typical and not for specifications.
CURE SCHEDULE:
SPRAYABLE POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
SP-205 A/B Page 2 of 2 Date: 10/10/2020
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.”
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
Gallon Kits 8 lbs. 7.2 lbs. 377
5-Gallon Kits 40 lbs. 36 lbs. 1,883
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 emergency 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 Titanium Dioxide (TiO2) 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
