ShurTape General Purpose Aluminum Foil Tape
1.88″ x 50.3 yds. Non-contaminating, siliconized, flat, white, paper release backing. Just peel off paper backing and press in place.
For joining and sealing aluminum-backed and fibrous insulation and metal duct work in temperatures ranging from -20 F to 260 F. Also use to repair metal and sheet metal.