3M 431 Aluminum Foil Tape
3M™ Aluminum Foil Tape 431 is 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. Low moisture vapor transmission rate offers excellent sealing and patching performance. Good aging performance both indoors and outdoors. Foil backing provides an excellent reflective surface for both heat and light. Best results attained when applied to clean dry surface above 32°F (0°C).
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, and decorative.
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