3M 2104B Size B 74 oz Insulating and Sealing Compound
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Manufacturer 3M
Mfg Catalog # 2104B
Irby Part # 3001614


  • 70 Shore A hardness
  • Has 18-minute gel time at 73 °F (23 °C)
  • 3M™ Scotchcast™ Electrical Insulating and Sealing Compound 2104 is a 2 part, liquid type, semi flexible resin useful for providing permanent splice protection. This polyurethane resin has a good wetting and impregnating property, which makes it easy to infuse on any surface. It is useful for applications that include filling, potting, sealing, insulating and more.
  • Useful for replacing or repairing the jacket on both single- and multi-core power cables
  • 3M™ Scotchcast™ Electrical Insulating and Sealing Compound 2104 has a 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 electrical applications that need good handling and performance characteristics. High dielectric strength offers a very good electrical insulating property to the resin. The resin allows you to insulate conductors of multi core splices operating at 1 kV or less. It is used in 72 N, 85 Series kits. ASTM Approved and RoHS 2011/65/EU Compliant‎.
  • Withstands a temperature range of 32 to 194 °F (0 to 90 °C)
  • Elongates 98% longer than its original size for easy insulation or wrapping
  • Withstands a voltage rating of 1 kV or less

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: 80610076616
  • Brand: Scotchcast™
  • Cable Accessory Products: Electrical Resins
  • Cable Insulation Outside Diameter Range: 0.87-1.06 in
  • Cable Insulation Outside Diameter Range (Metric): 22.1-26.8 mm
  • Cable Shielding: Concentric Neutral (CN) || Jacketed Concentric Neutral (JCN)
  • Color Family: Green
  • Conductor Sizes: 1 AWG || 1/0 AWG || 2 AWG
  • Conductor Sizes - Solid - Cable Insulation Thickness: 1 AWG (260 mils) || 1 AWG (280 mils) || 1 AWG (295 mils) || 1/0 AWG (260 mils) || 1/0 AWG (280 mils) || 1/0 AWG (295 mils)
  • Conductor Sizes - Stranded - Cable Insulation Thickness: 1 AWG (260 mils) || 1 AWG (280 mils) || 1 AWG (295 mils) || 2 AWG (260) || 2 AWG (280 mils) || 2 AWG (295 mils)
  • Connector Included: CIR-21
  • Cure Method: Room
  • Dielectric Strength (V/mil): 524 V/mil
  • Elongation: 98 %
  • Flexibility: Flexible
  • Form: Liquid
  • Gel Time: 18 Minutes at 73°F (23°C)
  • Hardness: 70 Shore A
  • Lug/Stem Connector Included in Kit: No
  • Manufacturing Origin: USA
  • Material: Polyurethane
  • Maximum Operating Temperature: 130 Degree Celsius
  • Maximum Solid Conductor Size: 1 AWG || 1/0 AWG
  • Maximum Stranded Conductor Size: 1 AWG || 2 AWG
  • Number of Conductors: 1
  • Product Color: Green
  • Product Type: Splice
  • Resin Matrix: Unfilled
  • Splice Type: Inline Repair
  • Temperature Rating: Class B
  • Tensile Strength (Imperial): 444 Pound-Force Per Square Inch
  • Voltage: 25 kV || 28 kV


UPC 05400731382
GTiN 00054007313823
Color Green
Material Polyurethane
Applications permanent splice protection
Family Brand Name Scotchcast
Dielectric Strength 524 mV

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