• Description for 3M 427

    5 mil nominal dead soft aluminum foil backing combined with a transparent acrylic adhesive, offers an easy-release liner.

    *See Terms of Use Below

    Application Type Bond, Seal, Indoor patching & sealing applications, Outdoor patching & sealing applications
    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 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 requirements of F.A.R. 25.853(a); Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311)
  • Technical Data

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  • Best Practices

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