UL approval aluminum foil tape Features:1) Soft aluminum foil, combined with a transparent high performance flame-retardant adhesive, which ... ) Designed for sealing joints and seams of foil jacket facings in air-conditioning ductworkSpecifications:1) Foil thickness: 18, 22, 25, 30, 36, 40 ... , 50m4) Log roll: 1.2 x 45m, 1.2 x 50m5) Jumbo roll: 1.2 x 1,200m, 1.2 x 1,000mInner packing:Cut roll ...