• Description for 3M 3570G

    Connector Sealing Pack insulate and provide protection for electrical spring connectors against dust, soil, water, and other environmental elements. Scotchcast 3570G electrical insulating resin is a two-part epoxy insulating and encapsulating resin.

    *See Terms of Use Below

    Chemical Resistance Oil
    Application Type Seal
    1 Part or 2 Part 2-Part
    Material Form Liquid
    Industry Electrical spring connectors
    Manufacturer 3M
    Chemistry Epoxy
    Cure Method Heat
    Color Red
  • Technical Data for 3M 3570G

    • Chemical Resistance
      • Chemical Resistance - Oil
    • Application Type
    • 1 Part or 2 Part
      • 2-Part
    • Material Form
      • Liquid
    • Industry
      • Connectors - Electrical spring connectors
    • Chemistry
    • Cure Method
      • Heat
    • Color
      • Red
    Bond Strength
    Tensile Strength (psi) 3,500 Test Method
    Material Resistance
    Moisture/Humidity Resistance Moisture resistance
    Dissipation Factor 2.5%, 5.7%, 9.2%, >20% Test Method
    Dielectric Strength (V/mil) Electrical insulating Test Method
    Dielectric Constant 3.90, 4.80, 5.90, 6.60 Test Method
    Shore D Hardness 75
    Elongation (%) 20 Test Method
    Other Properties
    Glass Transition Temp (Tg) (°C) 20 Test Method
    Business Information
    Shelf Life Details Scotchcast ™ 3570G Connector Sealing Packs must be stored at temperatures below 120°F., Scotchcast 3570G Connector Sealing Packs are usable 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 behind 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 under conditions of high humidity. For best results, use within one hour of opening guard bag. A Scotchcast 3570G Connector Sealing Pack is not impaired by freezing: however it should be warmed to at least 32°F (0°C) before being mixed or poured.
    Shelf Life Temperature (°F) 70
    Shelf Life Type From date of manufacture.
    Shelf Life (mon) 12
  • Best Practices for 3M 3570G

    *See Terms of Use Below

    1. Surface Preparation

      Thoroughly clean and dry the surface of the substrate to which the material is desired to bond.

    2. Application

      Remove guard bag, using caution not to damage inner bag.

      Grip both edges of bag at the center barrier (FIG. 1) and wrinkle and flex the bag across the barrier. This will weaken the barrier.

      Squeeze the clear side of the resin, forcing the resin through the center barrier.

      Squeeze resin to one end of bag, and cut off other end.

      Slowly insert connection into sealing pack until it fits snugly against the opposite end.

      Wrap open end of bag with Scotch® Super 33+ Vinyl Electrical Tape and position the taped end up until resin gels.

    3. Mixing

      The resin must be mixed within the Unipak™ container simply by separating the barrier between the two parts of the bag and working the contents back and forth within the bag.

      Mix thoroughly to a uniform color by squeezing contents back and forth 25-30 times.

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Tensile Strength Test Methods
Tensile Strength Test Method
3,500 psi ASTM D-412
Dielectric Constant Test Methods
Dielectric Constant Temperature Test Method
3.90 23°C ASTM D-150, 60 Hz
4.80 60°C ASTM D-150, 60 Hz
5.90 90°C ASTM D-150, 60 Hz
6.60 105°C ASTM D-150, 60 Hz
Dielectric Strength Test Methods
Dielectric Strength Test Method
Electrical insulating
Dissipation Factor Test Methods
Dissipation Factor Temperature Test Method
2.5% 23°C ASTM D-150, 60 Hz
5.7% 60°C ASTM D-150, 60 Hz
9.2% 90°C ASTM D-150, 60 Hz
>20% 105°C ASTM D-150, 60 Hz
Elongation Test Methods
Elongation Test Method
20 % ASTM D-412
Glass Transition Temp (Tg) Test Methods
Glass Transition Temp (Tg) Glass Transition Temperature (Tg) Test Method
20°C (by DTA) 3M test method