• Description for 3M 2104D

    A hard, two-part, polyurethane resin encapsulant designed especially for permanent splice protection. It is formulated for virtually every electrical application requiring a hard, non-reenterable resin with hard, non-reenterable resin with good handling and performance characteristics.

    *See Terms of Use Below

    Application Type Encapsulant
    1 Part or 2 Part 2-Part
    Material Form Liquid
    Substrate Aluminum, Copper, Neoprene, Nylon, Steel, Brass, Vinyl
    Industry Electrical, Potting printed circuit boards, Filling back shell connectors, Potting for motor repairs, Modern cable jackets, Multi-core splices, Multi-core power cables, Potting junction boxes, Potting cable or wire encasements, Potting cable fittings & splices
    Manufacturer 3M
    Cure Method 2-Part Cure
    Cure Temperature (°C) 22, -4, 21, 20 to 25
    Cure Time (min) Fast, <60, 1,200, 60
    Viscosity (cPs) Low
    Color Green, Dark Green
    High Temperature Resistance (°C) 90, 130
    Density (g/cm³) 0.596 (oz/in3)
  • Technical Data for 3M 2104D

    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Liquid
    • Substrate
    • Industry
      • Electronics - Electrical, Multi-core splices, Potting junction boxes
      • Printed Circuit Board (PCB) - Potting printed circuit boards
      • Connectors - Filling back shell connectors
      • Motors - Potting for motor repairs
      • Cable - Modern cable jackets, Multi-core power cables, Potting cable or wire encasements, Potting cable fittings & splices
    • Cure Method
      • 2-Part Cure
    • Color
      • Green - Dark Green
    Cure Specs
    Cure Temperature (°C) 22, -4, 21, 20 to 25
    Cure Time (min) Fast, <60, 1,200, 60
    Viscosity (cPs) Low
    Set Time (min) 18 Test Method
    Bond Strength
    General Bond Strength (psi) 411.6(lb/in2), 285.1(lb/in2), 558(lb/in2), 207.03(lb/in2), 10.5(lb/in2), 140.8(lb/in2), >25.5(lb/in2), 221.5(lb/in2) Test Method
    Tensile Strength (psi) 444 Test Method
    Material Resistance
    High Temperature Resistance (°C) 90, 130
    Dissipation Factor 4.1%, 0.00000 to 0.00000 9.1%, >200% Test Method
    Dielectric Strength (V/mil) Electrical Insulating, 524 Test Method
    Dielectric Constant 3.80, 4.59, 6.80 Test Method
    Shore A Hardness 70 Test Method
    Elongation (%) 98 Test Method
    Other Properties
    Glass Transition Temp (Tg) (°C) -70 Test Method
    Density (g/cm³) 0.596 (oz/in3) Test Method
    Business Information
    Shelf Life Details Scotchcast 2104 resin is stable for a period of one year from date of manufacture providing the Guard Bag (the white aluminized bag) is not opened when stored under the following recommended storage conditions. Store behing present stock in a clean dry place at a temperature of 70°F (21°C) and 40 to 50% relative humidity. Good stock rotation is also recommended. If the guard bag is removed, the shelf life could be reduced to as little as two hours under conditions of high humidity. Scotchcast 2104 is not impaired by freezing: however it should be warmed to at least 32°F (0°C) before being mixed or poured., 3M™ Scotchcast™ Electrical Insulating Resin 2104 has a 2-year shelf life from date of manufacture when stored in the factory-sealed packaging under humidity controlled storage (10°C/50°F to 27°C/80°F and <75% relative humidity).
    Shelf Life Temperature (°F) 70, 50 to 81
    Shelf Life Type From date of manufacture, From date of manufacture
    Shelf Life (mon) 12, 24
  • Best Practices for 3M 2104D

    *See Terms of Use Below

    1. Application

      Product should remain in the sealed container/envelope until ready to use. In cold weather, warm closed mixing pouch to 60°F (16°C) or warmer before mixing. Keep in a warm area, such as truck cab or inside pocket, until ready to use.

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    *See Terms of Use Below

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Set Time Test Methods
Set Time Set Temperature
18 min 23°C
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
411.6(lb/in2) Copper
285.1(lb/in2) Brass Metals,(3M TM-456)
558(lb/in2) Steel Metals,(3M TM-456)
207.03(lb/in2) Aluminum Metals,(3M TM-456)
10.5(lb/in2) Vinyl Cable Jackets,(3M TM-457)
140.8(lb/in2) Neoprene Cable Jackets,(3M TM-457)
>25.5(lb/in2) Nylon Cable Jackets,(3M TM-457)
221.5(lb/in2) XLPE Cable Jackets(3M TM-457)
Tensile Strength Test Methods
Tensile Strength Test Method
444 psi ASTM D-412
Dielectric Constant Test Methods
Dielectric Constant Temperature Test Method
3.80 23°C ASTM D-150, 1000 Hz
4.59 23°C ASTM D150 @ 60Hz
6.80 90°C ASTM D150 @ 60Hz
Dielectric Strength Test Methods
Dielectric Strength Test Method
Electrical Insulating
524 V/mil ASTM D149
Dissipation Factor Test Methods
Dissipation Factor Temperature Test Method
4.1% 23°C ASTM D-150, 1000 Hz
0.00000 to 0.00000 9.1% 23°C ASTM D150, @ 60Hz
>200% 90°C ASTM D150, @ 60Hz
Elongation Test Methods
Elongation Test Method
98 % ASTM D-412
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
70 ASTM D-2240
Density Test Methods
Density Test Method
0.596 (oz/in3)
Glass Transition Temp (Tg) Test Methods
Glass Transition Temp (Tg) Glass Transition Temperature (Tg) Test Method
-70°C (By DTA) 3M test method