by | Sep 27, 2025
M-3140 REV 1 A/B Page 1 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
M-3140 REV 1 A/B
40 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 15 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties with a convenient mix ratio. For faster work time see our FP and F-1
Series. Longer work times are available in the L Series of urethane elastomers.
RoHS/REACH Compliant Vibration Dampening Industrial Rollers
Phthalate Free Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD
ELEVATED TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 40 5
Density (g/cc) ASTM D792-00 1.035
Cubic Inches per Pound N/A 26.92
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 850
Tensile Modulus (psi) ASTM D412-98a(2002)e1 170
Elongation (%) ASTM D412-98a(2002)e1 990
Tear Strength (pli) ASTM D624-00e1 95
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.198
Dissipation Factor, 1 MHz ASTM D150-87 0.0512
*Note: Reported physical properties are based on test specimens cured 2 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.028 1.032
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,475 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,600
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 25 30 minutes
Demold Time @ 77 F (25 C) 4 6 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
M-3140 REV 1 A/B Page 2 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed curing
temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When M-3140 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend that
they be sealed. Release agents may then be applied over the sealed surface.
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the cured
physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured system. Color
stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that will help
slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
NOTE:
We recommend using a platinum-based silicone when casting our FP, F, M, and L series materials. Using tin-based molds may result in
curing issues. Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing
outdoors.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 108
Gallon Kits 8 lbs. 8 lbs. 431
5-Gallon Kits 40 lbs. 40 lbs. 2,154
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,690
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the
skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling
this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if allergic
reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by
medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of California to
cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
M-3140 REV 1 A/B Page 1 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
M-3140 REV 1 A/B
40 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 15 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties with a convenient mix ratio. For faster work time see our FP and F-1
Series. Longer work times are available in the L Series of urethane elastomers.
RoHS/REACH Compliant Vibration Dampening Industrial Rollers
Phthalate Free Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD
ELEVATED TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 40 5
Density (g/cc) ASTM D792-00 1.035
Cubic Inches per Pound N/A 26.92
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 850
Tensile Modulus (psi) ASTM D412-98a(2002)e1 170
Elongation (%) ASTM D412-98a(2002)e1 990
Tear Strength (pli) ASTM D624-00e1 95
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.198
Dissipation Factor, 1 MHz ASTM D150-87 0.0512
*Note: Reported physical properties are based on test specimens cured 2 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.028 1.032
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,475 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,600
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 25 30 minutes
Demold Time @ 77 F (25 C) 4 6 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
M-3140 REV 1 A/B Page 2 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed curing
temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When M-3140 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend that
they be sealed. Release agents may then be applied over the sealed surface.
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the cured
physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured system. Color
stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that will help
slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
NOTE:
We recommend using a platinum-based silicone when casting our FP, F, M, and L series materials. Using tin-based molds may result in
curing issues. Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing
outdoors.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 108
Gallon Kits 8 lbs. 8 lbs. 431
5-Gallon Kits 40 lbs. 40 lbs. 2,154
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,690
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the
skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling
this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if allergic
reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by
medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of California to
cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
M-3140 REV 1 A/B Page 1 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
M-3140 REV 1 A/B
40 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 15 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties with a convenient mix ratio. For faster work time see our FP and F-1
Series. Longer work times are available in the L Series of urethane elastomers.
RoHS/REACH Compliant Vibration Dampening Industrial Rollers
Phthalate Free Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD
ELEVATED TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 40 5
Density (g/cc) ASTM D792-00 1.035
Cubic Inches per Pound N/A 26.92
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 850
Tensile Modulus (psi) ASTM D412-98a(2002)e1 170
Elongation (%) ASTM D412-98a(2002)e1 990
Tear Strength (pli) ASTM D624-00e1 95
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.198
Dissipation Factor, 1 MHz ASTM D150-87 0.0512
*Note: Reported physical properties are based on test specimens cured 2 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.028 1.032
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,475 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,600
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 25 30 minutes
Demold Time @ 77 F (25 C) 4 6 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
M-3140 REV 1 A/B Page 2 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed curing
temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When M-3140 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend that
they be sealed. Release agents may then be applied over the sealed surface.
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the cured
physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured system. Color
stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that will help
slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
NOTE:
We recommend using a platinum-based silicone when casting our FP, F, M, and L series materials. Using tin-based molds may result in
curing issues. Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing
outdoors.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 108
Gallon Kits 8 lbs. 8 lbs. 431
5-Gallon Kits 40 lbs. 40 lbs. 2,154
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,690
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact on the
skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles when handling
this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended to
remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention if allergic
reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by
medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of California to
cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
M-3130 REV 1 A/B Page 1 of 2 Date: 12/01/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
M-3130 REV 1 A/B
30 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 10 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties. M-3130 is ideal for processing by hand or cartridge-dispensing with our
CPE handheld dispense equipment. For faster work time see our F-1 Series and for longer work times see the L Series of urethane
elastomers.
RoHS/REACH Compliant Vibration Dampening Molds for Plaster or Concrete
Bushings & Shock Absorbers Over Molding Strain Reliefs
Mercury/Phthalate Free
PHYSICAL PROPERTIES TEST METHOD
ELEVATED
TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 30 5
Density (g/cc) ASTM D792-00 1.036
Cubic Inches per Pound N/A 27
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 850
Tensile Modulus (psi) ASTM D412-98a(2002)e1 140
Elongation (%) ASTM D412-98a(2002)e1 1,500
Tear Strength (pli) ASTM D624-00e1 110
Shrinkage (in/in) linear ASTM D2566 @ 1 depth <0.001
Dielectric Constant, 1 MHz ASTM D150-87 5.499
Dissipation Factor, 1 MHz ASTM D150-87 0.0532
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 100
Mix Ratio (by volume) 100 99
Specific Gravity @ 77 F (25 C) 1.025 1.032
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,050 1,200
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,500
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 25 30 minutes
Demold Time @ 77 F (25 C) 4 5 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
M-3130 REV 1 A/B Page 2 of 2 Date: 12/01/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY "Except for a warranty that materials substantially comply with the data presented in Manufacturer's latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold "AS IS" and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer's liability for damages exceed
Manufacturer's sale price of the particular quantity with respect to which damages are claimed."
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When M-3130 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first
recommend that they be sealed. Release agents may then be applied over the sealed surface.
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the
cured physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured
system. Color stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter
pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that
will help slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
NOTE:
Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing outdoors.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 108
Gallon Kits 8 lbs. 8 lbs. 432
5-Gallon Kits 40 lbs. 40 lbs. 2,160
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,760
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.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Refer to the Material Safety Data Sheet before using this product.
Handling Guide
by | Sep 27, 2025
M-3130 A/B Page 1 of 2 Date: 08/16/2017
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
Quality Management
System Registered
to ISO 9001:2008
M-3130 A/B
30 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 10 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties. M-3130 is ideal for processing by hand or cartridge-dispensing with our
CPE handheld dispense equipment. For faster work time see our F-1 Series and for longer work times see the L Series of urethane
elastomers.
RoHS/REACH Compliant Vibration Dampening Molds for Plaster or Concrete
Bushings & Shock Absorbers Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD
7 DAY AMBIENT
CURE
21 DAY
AMBIENT CURE
ELEVATED
TEMPERATURE
CURE*
Hardness, Shore A ASTM D2240-04e1 25 5 30 5 30 5
Density (g/cc) ASTM D792-00 1.029 1.029 1.029
Cubic Inches per Pound N/A 26.98 26.98 26.98
Color/Appearance Visual
Translucent
Amber
Translucent
Amber
Translucent
Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 375 410 1,080
Tensile Modulus (psi) ASTM D412-98a(2002)e1 130 120 140
Elongation (%) ASTM D412-98a(2002)e1 1,300 1,440 1,460
Tear Strength (pli) ASTM D624-00e1 70 70 100
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0030
TBD TBD
Dielectric Constant, 1 MHz ASTM D150-87 5.769 5.769 5.769
Dissipation Factor, 1 MHz ASTM D150-87 0.058 0.058 0.058
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio (by weight) 100 100
Mix Ratio (by volume) 100 100
Specific Gravity @ 77 F (25 C) 1.040 1.026
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 780 1,075
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,500
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 30 35 minutes
Demold Time @ 77 F (25 C) 4 6 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
M-3130 A/B Page 2 of 2 Date: 08/16/2017
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
Quality Management
System Registered
to ISO 9001:2008
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
PREPARATION AND RELEASING :
When M-3130 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend that
they be sealed. Release agents may then be applied over the sealed surface.
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the
cured physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured
system. Color stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter
pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that
will help slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
NOTE:
Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing outdoors.
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 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. 8 lbs. 432
5-Gallon Kits 40 lbs. 40 lbs. 2,158
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,742
SAFETY PRECAUTIONS :
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS :
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention
if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
Handling Guide M-3130 Part A SDS M-3130 Part B SDS
by | Sep 27, 2025
M-3115 REV 1 A/B Page 1 of 2 Date: 02/02/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
M-3115 REV 1 A/B
15 SHORE A POLYURETHANE ELASTOMER
BJB s M Series with work times between 10 and 20 minutes is perfect for a variety of part and mold applications. These
flexible systems exhibit exceptional physical properties. M-3115 REV 1 is ideal for processing by hand or cartridge-dispensing
with our CPE handheld dispense equipment. For faster work time see our F-1 Series and for longer work times see the L Series of
urethane elastomers.
RoHS/REACH Compliant Vibration Dampening Special FX
Medical Training Models Over Molding Prototypes
Phthalate Free
PHYSICAL PROPERTIES TEST METHOD ELEVATED TEMPERATURE CURE*
Hardness, Shore A ASTM D2240-04e1 15 5
Density (g/cc) ASTM D792-00 0.997
Cubic Inches per Pound N/A 27.72
Color/Appearance Visual Translucent Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 455
Tensile Modulus (psi) ASTM D412-98a(2002)e1 110
Elongation (%) ASTM D412-98a(2002)e1 900
Tear Strength (pli) ASTM D624-00e1 55
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.234
Dissipation Factor, 1 MHz ASTM D150-87 0.0346
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 100 99
Specific Gravity @ 77 F (25 C) 0.995 1.006
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 620 850
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 765
Work Time, 100g mass @ 77 F (25 C) 15 20 minutes
Gel Time 25 30 minutes
Demold Time @ 77 F (25 C) 6 8 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
M-3115 REV 1 A/B Page 2 of 2 Date: 02/02/2023
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
COLOR VARIATIONS:
The color of the base material may vary slightly from batch to batch due to raw ingredients. Color variations will not affect the
cured physical properties. Exposing the material to various conditions such as heat and UV light will alter the color of the cured
system. Color stability is not guaranteed. This product can be pigmented, but you may see more color shift when using lighter
pigments.
UV RESISTANCE:
This product is not classified as UV resistant. BJB offers an additive called UV-100, a UV inhibitor and anti-oxidant blend that
will help slow down the effects of UV degradation and color change. The level of effectiveness varies from product to product.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 111
Gallon Kits 8 lbs. 8 lbs. 444
5-Gallon Kits 40 lbs. 40 lbs. 2,218
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention
if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
L-3560 REV 1 A/B Page 1 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
L-3560 REV 1 A/B
60 SHORE A POLYURETHANE ELASTOMER
BJB s L Series , with its 20 to 35 minute work time, is perfect for manufacturing larger or more complex parts and molds. The
L-3560 REV 1 is a 60 Shore A material offering exceptional physical properties. You ll find the 1:1 ratio to be extremely
convenient whether you re hand mixing or using cartridges. For faster work times consider BJB s FP, F-1 or M Series of urethane
elastomers.
RoHS/REACH compliant Phthalate Free Industrial Rollers
Bushings and Shock Absorbers Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD ELEVATED TEMPERATURE CURE*
Hardness, Shore A ASTM D2240-04e1 60 5
Density (g/cc) ASTM D792-00 1.045
Cubic Inches per Pound N/A 26.49
Color/Appearance Visual Clear Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 1,450
Tensile Modulus (psi) ASTM D412-98a(2002)e1 430
Elongation (%) ASTM D412-98a(2002)e1 1,400
Tear Strength (pli) ASTM D624-00e1 215
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.267
Dissipation Factor, 1 MHz ASTM D150-87 0.0492
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 99 100
Specific Gravity @ 77 F (25 C) 1.053 1.042
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 2,500 1,000
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 2,200
Work Time, 100g mass @ 77 F (25 C) 25 30 minutes
Gel Time 55 60 minutes
Demold Time @ 77 F (25 C) 8 14 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
L-3560 REV 1 A/B Page 2 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When L-3560 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend
that they be sealed. Release agents may then be applied over the sealed surface.
NOTE:
We recommend using a platinum-based silicone when casting our FP, F, M, and L series materials. Using tin-based molds may result in
curing issues.
Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing outdoors. T
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 106
Gallon Kits 8 lbs. 8 lbs. 424
5-Gallon Kits 40 lbs. 40 lbs. 2,119
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,311
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention
if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
L-3560 REV 1 A/B Page 1 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
L-3560 REV 1 A/B
60 SHORE A POLYURETHANE ELASTOMER
BJB s L Series , with its 20 to 35 minute work time, is perfect for manufacturing larger or more complex parts and molds. The
L-3560 REV 1 is a 60 Shore A material offering exceptional physical properties. You ll find the 1:1 ratio to be extremely
convenient whether you re hand mixing or using cartridges. For faster work times consider BJB s FP, F-1 or M Series of urethane
elastomers.
RoHS/REACH compliant Phthalate Free Industrial Rollers
Bushings and Shock Absorbers Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD ELEVATED TEMPERATURE CURE*
Hardness, Shore A ASTM D2240-04e1 60 5
Density (g/cc) ASTM D792-00 1.045
Cubic Inches per Pound N/A 26.49
Color/Appearance Visual Clear Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 1,450
Tensile Modulus (psi) ASTM D412-98a(2002)e1 430
Elongation (%) ASTM D412-98a(2002)e1 1,400
Tear Strength (pli) ASTM D624-00e1 215
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.267
Dissipation Factor, 1 MHz ASTM D150-87 0.0492
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 99 100
Specific Gravity @ 77 F (25 C) 1.053 1.042
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 2,500 1,000
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 2,200
Work Time, 100g mass @ 77 F (25 C) 25 30 minutes
Gel Time 55 60 minutes
Demold Time @ 77 F (25 C) 8 14 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
L-3560 REV 1 A/B Page 2 of 2 Date: 08/09/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When L-3560 REV 1 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend
that they be sealed. Release agents may then be applied over the sealed surface.
NOTE:
We recommend using a platinum-based silicone when casting our FP, F, M, and L series materials. Using tin-based molds may result in
curing issues.
Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing outdoors. T
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 106
Gallon Kits 8 lbs. 8 lbs. 424
5-Gallon Kits 40 lbs. 40 lbs. 2,119
55-Gallon Drum Kits 440 lbs. 440 lbs. 23,311
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention
if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is known to the State of
California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Handling Guide
by | Sep 27, 2025
L-3540 REV 1 A/B Page 1 of 2 Date: 11/01/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com
L-3540 REV 1 A/B
40 SHORE A POLYURETHANE ELASTOMER
BJB s L Series , with its 20 to 35 minute work time, is perfect for manufacturing larger or more complex parts and molds. The
L-3540 is a 40 Shore A material offering exceptional physical properties. You ll find the 1:1 ratio to be extremely convenient
whether you re hand mixing or cartridge-dispensing with our CPE handheld dispense equipment. For faster work times consider
BJB s F-1 or M Series of urethane elastomers.
RoHS/REACH compliant Vibration Dampening Industrial Rollers
Plaster and Concrete Molds Over Molding Strain Reliefs
PHYSICAL PROPERTIES TEST METHOD ELEVATED TEMPERATURE CURE*
Hardness, Shore A ASTM D2240-04e1 40 5
Density (g/cc) ASTM D792-00 1.035
Cubic Inches per Pound N/A 26.92
Color/Appearance Visual Clear Amber
Tensile Strength (psi) ASTM D412-98a(2002)e1 960
Tensile Modulus (psi) ASTM D412-98a(2002)e1 175
Elongation (%) ASTM D412-98a(2002)e1 1,100
Tear Strength (pli) ASTM D624-00e1 120
Shrinkage (in/in) linear ASTM D2566 @ 1 depth 0.0010
Dielectric Constant, 1 MHz ASTM D150-87 5.198
Dissipation Factor, 1 MHz ASTM D150-87 0.0512
*Note: Reported physical properties are based on test specimens cured 1-3 hours at room temperature then 16 hours at 160 F (71 C).
Shrink test specimens are cured for 24 hours at room temperature and then 16 hours at 160 F (71 C).
HANDLING PROPERTIES Part A Part B
Mix Ratio by weight 100 100
Mix Ratio by volume 100 100
Specific Gravity @ 77 F (25 C) 1.028 1.032
Color Pale Yellow Amber
Viscosity (cps) @ 77 F (25 C) Brookfield 1,475 1,350
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 1,600
Work Time, 100g mass @ 77 F (25 C) 25 30 minutes
Gel Time 45 50 minutes
Demold Time @ 77 F (25 C) 8 14 hours
Properties above are typical and not for specifications.
SHORE A POLYURETHANES
Dedicated to QUALITY, SERVICE, SAFETY, and INNOVATION
An ISO-9001 Certified company
L-3540 REV 1 A/B Page 2 of 2 Date: 11/01/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
NON-WARRANTY “Except for a warranty that materials substantially comply with the data presented in Manufacturer’s latest bulletin describing the product (the basis for this substantial
compliance is to be determined by the standard quality control tests generally performed by Manufacturer), all materials are sold “AS IS” and without any warranty express or implied as
to merchantability, fitness for a particular purpose, patent, trademark or copyright infringement, or as to any other matter. In no event shall Manufacturer’s liability for damages exceed
Manufacturer’s sale price of the particular quantity with respect to which damages are claimed.”
CURE SCHEDULE/HEAT CURING:
Most of the physical properties can be achieved in 5-7 days at 77 F (25 C). You may use your own post-cure schedule but the physical
properties may vary from BJB s cure schedule of 1-3 hours at 77 F (25 C) followed by 16 hours at 160 F (71 C). Do not exceed
curing temperature of 200 F (93 C).
PREPARATION AND RELEASING:
When L-3540 A/B is used to produce molds or parts from plaster, wood or other porous substrates, we would first recommend that
they be sealed. Release agents may then be applied over the sealed surface.
NOTE:
Prolonged direct exposure to sunlight can affect the surface of this product. Cover molds or other products when storing outdoors.
The cure may be inhibited if cast against a relatively new tin catalyzed (condensation cure) silicone RTV.
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 ambient temperatures, 65-80 F (18-27 C). Unopened containers will have a shelf life of 6 months from date of shipment when
properly stored at recommended temperatures. Purge opened containers with dry nitrogen before re-sealing.
PACKAGING Part A Part B Cubic Inches per Kit
Quart Kits 2 lbs. 2 lbs. 108
Gallon Kits 8 lbs. 8 lbs. 431
5-Gallon Kits 40 lbs. 40 lbs. 2,154
SAFETY PRECAUTIONS:
Use in a well-ventilated area. Avoid contact with skin using protective gloves and protective clothing. Repeated or prolonged contact
on the skin may cause an allergic reaction. Eye protection is extremely important. Always use approved safety glasses or goggles
when handling this product.
IF CONTACT OCCURS:
Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. It is not recommended
to remove resin from skin with solvents. Solvents only increase contact and dry skin. Seek qualified medical attention
if allergic reactions occur.
Eyes: Immediately flush with water for at least 15 minutes. Call a physician.
Ingestion: If swallowed, call a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as
directed by medical personnel. Never give anything by mouth to an unconscious person.
Refer to the Material Safety Data Sheet before using this product.
WARNING: This product can expose you to chemicals including Toluene diisocyanate, which is 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
pcf ASTM D-1622 2.1 – 2.4
psi ASTM D-1621 20 – 25
psi ASTM D-1623 30 – 35
psi ASTM D-273 30 – 35
psi ASTM C-203 –
% ASTM D-2856 > 94
Units Component A Component B
(A/B) 50 50
(A/B) 52 48
g/mL 1.21 – 1.23 1.16 – 1.18
cPs 150 – 250 900 – 1000
– Amber Amber
Seconds
Seconds
Seconds
Seconds
Minutes
Hours
Storage and Shelf Life
Packaging
Component A: 500 lbNet Weight
2500 lbNet Weight
Component B: 450 lbNet Weight
2250 lbNet Weight
HP 8602 is a High Performance, rigid polyurethane foam designed for processing through plural
component, low or high pressure dispensing equipment. Once fully cured, this material is tough with
high compression and tensile value. HP 8602 exhibits very good surface characteristics and excellent
moldability. This material is Eco Friendly due to its lack of HCFC`s, HFC`s, and lead or other heavy
metals.
*Properties are typical and not for specifications*
Shear Strength
Handling Characteristics
Tensile Strength
Flexural Strength
Physical Properties (Final Product)
Closed Cell Content
Free Rise Density
Compressive Strength
Specific Gravity @ 75 F
HP 8602
TECHNICAL DATA SHEET
Rigid Foam Polyurethane System
Final Cure Time
30 – 35
110 – 120
150 – 170
230 – 250
20 – 40
24
Mix Ratio by Volume
Mix Ratio by Weight
Viscocity @ 75 F
Color
Cream Time @ 75 F
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.
55 gallon steel drum (closed top)
275 gallon plastic totes
55 gallon steel drum (open top)
Gel Time @ 75 F
Rise Time
Tack Free Time
Demold Time
For more information contact Eteco, Inc. (714) 480-1370 | info@etecoinc.com
www.etecoinc.com
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.
275 gallon plastic totes
