3M Aluminum Foil Tape, 437, silver, 4.0 in x 60.0 yd x 4.6 mils (10.2 cm x 54.9 m x 0.12 mm) 3M Aluminum Foil Tape 437 features a dead soft, aluminum foil backing with an acrylic, pressure-sensitive adhesive on a polycoated kraft paper linerIt utilizes a high tack adhesive which allows for quick and easy application on assembly lines. Product Information Brand 3M Part # 7100050115 Adhesive Type Acrylic Color Silver Length 60yds Width 4 Inch Origin Country USA Product Type Foil Tapes Product InformationDurable aluminum foil backing offers ideal properties for long serviceable life indoors and outHeat-resistant and light-reflective tape protects surfaces and enhances lighting efficiencyPerforms continuously in temperatures from -40?F/-40?C to 212?F/100?CPressure sensitive acrylic adhesive meets automotive OEM requirementsThermally conductive and reflective backing assists with heat shieldingSuggested ApplicationUse for heat shielding, moisture barrier, and thermal conductingThermally conductive tape for heating and cooling efficiencyIdeal for long life in and outdoors