• Description for 3M 425

    5 mil nominal dead soft aluminum foil backing combined with a transparent acrylic adhesive.

    *See Terms of Use Below

    Application Type Bond, Seal
    1 Part or 2 Part 1 Part
    Material Form Aluminum Foil Tape
    Substrate Steel
    Industry General purpose heat reflector, Splicing of thin gauge foils, Repair tears on truck trailers, Repair tears on aircraft, Repair tears on truck trailers, General purpose holding
    Manufacturer 3M
    Chemistry Acrylic, Dead soft aluminum
    Cure Method Pressure Sensitive
    Color Shiny silver
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Durability Durable
    Light Refractive Index (RI) Excellent Reflection Light
    Key Specifications Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311).; Meets requirements of F.A.R. 25.853(a).
  • Technical Data for 3M 425

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape - Aluminum Foil Tape
    • Substrate
    • Industry
      • Trucks - Repair tears on truck trailers
      • Trailer - Repair tears on truck trailers
      • Aerospace - Repair tears on aircraft
      • Industrial - Indoor sealing applications, Outdoor sealing applications
      • General Purpose - General purpose heat reflector, General purpose holding
      • Splicing - Splicing of thin gauge foils
      • Appliances - Moisture barrier in “white goods” appliances., Mechanically hold wires and cooling coils in “white goods” appliances
      • Other - Aircraft paint stripping maskant., Heat dissipator, Patching
    • Chemistry
      • Acrylic
      • Other - Dead soft aluminum
    • Cure Method
      • Pressure Sensitive (min) - Pressure Sensitive
    • Color
      • Gray - Shiny silver
    • Key Specifications
      • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311).; Meets requirements of F.A.R. 25.853(a).
    Specifications
    Cure Specs
    Application Temperature (°F) >32
    Bond Strength
    General Bond Strength (psi) 47 (oz./in.) Test Method
    Tensile Strength (psi) 28 (lbs./in.) Test Method
    Material Resistance
    Flame Resistance Flame resistant
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Hardness
    Durability Durable
    Elongation (%) 6 Test Method
    Other Properties
    Light Refractive Index (RI) Excellent Reflection Light
    Business Information
    Shelf Life Details Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% R.H. in the original carton.;To obtain best performance, use this product within 24 months from date of manufacture.
    Shelf Life Temperature (°F) 60 to 80
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 24
  • Best Practices for 3M 425

    *See Terms of Use Below

    1. Surface Preparation

      Best results obtained when applied to a clean, dry surface above 32°F (0°C).

  • Comparable Materials for 3M 425

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Tensile Strength Test Methods
Tensile Strength Test Method
28 (lbs./in.) ASTM D-3759, width
General Bond Strength Test Methods
General Bond Strength Substrate Test Method
47 (oz./in.) Steel ASTM D-3330, width
Elongation Test Methods
Elongation Test Method
6 % ASTM D-3759 (at Break)