... temperature and aging resistance, and water vapor resistance Aluminum Foil Tape Features:1) Soft aluminum foil, coated with aggressive solvent-based acrylic adhesive, ... fire rating2) Designed for sealing joints and seams of foil jacket facings in air-conditioning duct work Specifications: 1 ... ) Foil thickness: 30, 40, 50μ2) Roll width: 48, 50, ...