3M 2131B 7.5 oz Flame Retardant Compound
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Manufacturer 3M
Mfg Catalog # 2131B
North Coast Part # 1165021


  • Typical hardness (ASTM D2240) - 82 Shore A
  • 3M™ Scotchcast™ Electrical Resin 2131 is a 2 part, flame retardant compound, useful for coating cable jackets when splicing or repairing mine and portable cables. This permanent, polyurethane, liquid type resin has a unique formulation used in rugged conditions. The high dielectric strength offers a very good electrical insulating property to the resin.
  • Has 17-minute gel time at 73 °F (23 °C)
  • Useful for replacing or repairing the jacket on both single- and multi-core power cables
  • 3M™ Scotchcast™ Flame Retardant Resin 2131 has low gel point rating to ensure curing at room temperature. The high tensile strength of the resin exhibits a semi flexible property and good adhesion property after curing. It is ideal for applications that need excellent thermal shock and mechanical shock resistance. It has a high flash point, preventing any fire hazard due to quick ignition. The flame retardant resin allows you to insulate cable splices operating up to 1 kV and to seal the crotch or sheath when terminating multi core cables. RoHS 2011/65/EU Compliant.
  • Withstands a temperature range of 32 to 194 °F (0 to 90 °C)
  • Elongates 339% longer than its original size for easy insulation or wrapping
  • Flame-retardant
  • Rated up to 1 kV
  • RoHS 2011/65/EU Compliant

Legal Disclaimer

  • The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.
  • Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.


  • 3M ID: 80611468259
  • Application: Sealing, electrical insulation and mechanical protection
  • Brand: Scotchcast™
  • Cable Accessory Products: Electrical Resins
  • Case Quantity: 10
  • Color Family: Black
  • Container Size (Imperial): 7.5 oz
  • Cure Method: Room
  • Dielectric Strength (V/mil): 343 V/mil
  • Elongation: 3.39 %
  • Flexibility: Flexible
  • Form: Liquid
  • Gel Time: 17 minutes at 73(deg)F (23(deg)C)
  • Hardness: 82 Shore A
  • Manufacturing Origin: USA
  • Material: Polyurethane
  • Maximum Operating Temperature: 90ºC (194ºF) continuous; overload rating 130ºC (266ºF)
  • Net Weight (Imperial): 7.51 oz
  • Net Weight (Metric): 213 g
  • Product Color: Black
  • Product Type: Resin
  • Resin Matrix: Filled
  • Tensile Strength (Imperial): 1038 Pound-Force Per Square Inch
  • Voltage: 1 kV
  • Voltage Application: Low Voltage
  • Weight (Imperial): 7.5 ounce


UPC 05112859166
GTiN 00051128591666
Color Black
Type Reenterable Electrical Insulating Resin
Applications reenterable
Family Brand Name Scotchcast
Sub Brand Scotchcast
Weight 7.5 oz

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