• Description for 3M 431

    A 2-mil nominal dead soft aluminum foil with transparent acrylic adhesive for many permanent sealing, holding, splicing or masking applications requiring the protection offered by a foil backing.

    *See Terms of Use Below

    Application Type Adhesion, Masking, Sealing
    1 Part or 2 Part 1 Part
    Material Form Tape
    Substrate Steel
    Industry General purpose holding indoors, Splicing, Seal in truck trailers, Seal in truck trailers, General purpose holding outdoors, Patch tears in truck trailers, Patch tears in truck trailers
    Manufacturer 3M
    Chemistry Acrylic
    Cure Method Pressure Sensitive
    Color Shiny silver
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Key Specifications Meets requirements of F.A.R. 25.853(a); U.L. 723, Class “L” low flammability rating (File R 7311)
  • Technical Data for 3M 431

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Tape
    • Substrate
    • Industry
      • Trucks - Seal in truck trailers, Patch tears in truck trailers
      • Trailer - Patch tears in truck trailers, Seal in truck trailers
      • General Purpose - General purpose holding indoors, General purpose holding outdoors
      • Splicing
      • Other - Holding, Many permanent sealing, Masking applications, Patching indoors, Patching outdoors, Sealing applications indoors, Sealing applications outdoors, Other outdoor equipment, Decorative
    • Chemistry
    • 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 requirements of F.A.R. 25.853(a); U.L. 723, Class “L” low flammability rating (File R 7311)
    Specifications
    Cure Specs
    Application Temperature (°F) >32
    Bond Strength
    General Bond Strength (psi) 41 (oz./in.) Test Method
    Tensile Strength (psi) 19 (lbs./in.) Test Method
    Material Resistance
    Flame Resistance Flame resistant
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -54
    Hardness
    Elongation (%) 5 Test Method
    Business Information
    Shelf Life Details Storage: 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
    Not Good For
    Don't Use For Tape is not intended for medical usage, Neither 3M nor the Food and Drug Administration have evaluated or reviewed this tape for medical application.
    Don't Use With chlorine or other strong oxidizing materials
  • Best Practices for 3M 431

    *See Terms of Use Below

    1. Surface Preparation

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

  • Comparable Materials for 3M 431

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General Bond Strength Test Methods
General Bond Strength Substrate Test Method
41 (oz./in.) Steel ASTM D-3330, width
Tensile Strength Test Methods
Tensile Strength Test Method
19 (lbs./in.) ASTM D-3759, at Break, width
Elongation Test Methods
Elongation Test Method
5 % D-3759, at Break