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3M™ Aluminum Foil Tape 439

Overview
Data Sheets & Summary Sheets
  • 3M 439

    3M™ Aluminum Foil Tape 439 Silver, Linered version of Tape 431, 3.1 mil (0.08 mm) aluminum foil backing with acrylic adhesive. 3M™ Aluminum Foil Tape 439, linered version of Tape 431, dead-soft aluminum foil backing, excellent heat and light reflection to protect against high temperatures and U.V. degradation. The foil also serves as an excellent barrier against moisture.

    Acrylic adhesive supplies superior temperature, U.V. and solvent resistance. It provides excellent age life and is ideal for harsh, long-term outdoor environments. Linered version for die cut applications. Meets F.A.R 25.853(a) and meets UL 723 Class L 3M™ Premium Performance Aluminum Foil Tapes, excellent heat and light reflection to protect against high temperatures and U.V. degradation. These foils also serve as an excellent barrier against moisture, dust, flame, and certain chemicals as used in aircraft paint stripping masking. Acrylic adhesive supplies superior temperature, U.V. and solvent resistance. It provides excellent age life and is ideal for harsh, long-term outdoor environments. Meets F.A.R 25.853(a), O447

    Features: 

    • Flame resistant. Meets U.L. 723, Class “L” low flammability rating (File R 7311).
    • Meets requirements of F.A.R. 25.853(a).
    • Foil backing provides an excellent reflective surface for both heat and light.
    • Good aging performance both indoors and outdoors.
    • Low moisture vapor transmission rate offers excellent sealing and patching performance.
    • Best results attained when applied to clean dry surface above 32°F (0°C).

    Typical Applications: 

    • Seal and patch tears in truck trailers, as well as other outdoor equipment.
    • Reflect heat away from sensitive areas.
    • Thermal heat conduction.
    • General purpose holding, patching, sealing applications – indoors or out.
    • Splicing of thin gauge foils.
    • Good maskant in electroplating of aluminum because it will not contaminate the bath.
    • Decorative.
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