by | Sep 27, 2025
TC-277 A/B Page 1 of 2 Date: 07/03/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
POLYURETHANE FOAMS
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-277 A/B
4 LB FLEXIBLE FOAM
TC-277 A/B is a two-component, flexible polyurethane foam. The cured material feels similar to foam sandals. 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-277 at a ratio of 75/100 pbw produces a firm, quick recovery foam. At 60/100 pbw, the result will be a slightly softer
foam.
HANDLING PROPERTIES For a firmer foam For slightly softer foam
Mix Ratio by weight
75 parts A
100 parts B
60 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
4 4
Density, (free rise) kg/m
3
64 64
Cream Time @ 77 F (25 C) 15-20 seconds 15-20 seconds
Rise Time 80-90 seconds 80-90 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 F (25 C) 1.15 1.03
Viscosity, (cps) @ 77 F (25 C) Brookfield 425 2250
*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. BJB quality control tests and product packaging are based on the 75/100 pbw ratio.
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.
TC-277 A/B 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.”
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 acrylic 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 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 TC-1630 molds. Epoxy
molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-277 A/B can be removed from the mold within a 20-30 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 1.5 lbs. 2 lbs.
Gallon Kits 6 lbs. 8 lbs.
5-Gallon Kits 30 lbs. 40 lbs.
55-Gallon Drum Kits 300 lbs. 400 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-277 A/B Page 1 of 2 Date: 07/03/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
POLYURETHANE FOAMS
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-277 A/B
4 LB FLEXIBLE FOAM
TC-277 A/B is a two-component, flexible polyurethane foam. The cured material feels similar to foam sandals. 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-277 at a ratio of 75/100 pbw produces a firm, quick recovery foam. At 60/100 pbw, the result will be a slightly softer
foam.
HANDLING PROPERTIES For a firmer foam For slightly softer foam
Mix Ratio by weight
75 parts A
100 parts B
60 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
4 4
Density, (free rise) kg/m
3
64 64
Cream Time @ 77 F (25 C) 15-20 seconds 15-20 seconds
Rise Time 80-90 seconds 80-90 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 F (25 C) 1.15 1.03
Viscosity, (cps) @ 77 F (25 C) Brookfield 425 2250
*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. BJB quality control tests and product packaging are based on the 75/100 pbw ratio.
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.
TC-277 A/B 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.”
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 acrylic 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 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 TC-1630 molds. Epoxy
molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-277 A/B can be removed from the mold within a 20-30 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 1.5 lbs. 2 lbs.
Gallon Kits 6 lbs. 8 lbs.
5-Gallon Kits 30 lbs. 40 lbs.
55-Gallon Drum Kits 300 lbs. 400 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-277 A/B Page 1 of 2 Date: 07/03/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
POLYURETHANE FOAMS
By BJB Enterprises. Inc.
An ISO-9001 Certified company
TC-277 A/B
4 LB FLEXIBLE FOAM
TC-277 A/B is a two-component, flexible polyurethane foam. The cured material feels similar to foam sandals. 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-277 at a ratio of 75/100 pbw produces a firm, quick recovery foam. At 60/100 pbw, the result will be a slightly softer
foam.
HANDLING PROPERTIES For a firmer foam For slightly softer foam
Mix Ratio by weight
75 parts A
100 parts B
60 Parts A
100 Parts B
Density, (free rise) lbs/ft
3
4 4
Density, (free rise) kg/m
3
64 64
Cream Time @ 77 F (25 C) 15-20 seconds 15-20 seconds
Rise Time 80-90 seconds 80-90 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 F (25 C) 1.15 1.03
Viscosity, (cps) @ 77 F (25 C) Brookfield 425 2250
*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. BJB quality control tests and product packaging are based on the 75/100 pbw ratio.
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.
TC-277 A/B 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.”
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 acrylic 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 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 TC-1630 molds. Epoxy
molds offer the least expensive method for long term use when cycle times allow slower heat dissipation.
DEMOLDING FOAM MATERIALS:
TC-277 A/B can be removed from the mold within a 20-30 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 1.5 lbs. 2 lbs.
Gallon Kits 6 lbs. 8 lbs.
5-Gallon Kits 30 lbs. 40 lbs.
55-Gallon Drum Kits 300 lbs. 400 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-274 A/B Page 1 of 2 Date: 10/12/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-274 A/B
POLYSOFT 2
4 LB FLEXIBLE FOAM
TC-274 A/B PolySoft 2 is a two-component water blown flexible polyurethane foam system. The cured material feels similar to a
medium-firmness furniture cushion. BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors.
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.
TC-274 A/B can be hand mixed, machine dispensed, or mixed with a Jiffy Mixer .
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 50 100
Mix Ratio by volume 43 100
Specific Gravity @ 77 F (25 C) 1.19 1.03
Color Brown Amber
Viscosity (cps) @77 F (25 C) Brookfield 205 1,070
Density (free rise) lbs/ft
3
4
Density (free rise) kg/m
3
64
Cream Time 20 30 seconds
Rise Time 2.5 3 minutes
Tack Free Time 8 10 minutes
Demold Time 15 20 minutes
*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 5
to 8 second periods generally established for achieving a uniform blend.
The material should have a uniform blended appearance. 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.
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 lacquer 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.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-274 A/B Page 2 of 2 Date: 10/12/2021
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.”
MOLD PREPARATIONS (continued):
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. 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 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-274 A/B can be removed from the mold within a 15-20 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-274 A/B Page 1 of 2 Date: 10/12/2021
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
TC-274 A/B
POLYSOFT 2
4 LB FLEXIBLE FOAM
TC-274 A/B PolySoft 2 is a two-component water blown flexible polyurethane foam system. The cured material feels similar to a
medium-firmness furniture cushion. BJB s 6800 Series Pigments may be added to the B side for developing a wide range of colors.
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.
TC-274 A/B can be hand mixed, machine dispensed, or mixed with a Jiffy Mixer .
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 50 100
Mix Ratio by volume 43 100
Specific Gravity @ 77 F (25 C) 1.19 1.03
Color Brown Amber
Viscosity (cps) @77 F (25 C) Brookfield 205 1,070
Density (free rise) lbs/ft
3
4
Density (free rise) kg/m
3
64
Cream Time 20 30 seconds
Rise Time 2.5 3 minutes
Tack Free Time 8 10 minutes
Demold Time 15 20 minutes
*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 5
to 8 second periods generally established for achieving a uniform blend.
The material should have a uniform blended appearance. 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.
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 lacquer 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.
POLYURETHANE FOAM SYSTEMS
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
TC-274 A/B Page 2 of 2 Date: 10/12/2021
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.”
MOLD PREPARATIONS (continued):
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. 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 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-274 A/B can be removed from the mold within a 15-20 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-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.
