1 High tensile strength aluminum foil backing 2 Combined with a high performance adhesive, protected by an easy-release silicone release paper 3 HVAC industry for joining and sealing foil-scrim-kraft facing laminated fiberglass blanket/duct board joints and seams; joining and sealing flexible air duct seams and connections 4 May also be used for other industrial uses requiring a tape with these characteristics and benefits 75mm*30yards 1roll/shrink,48rolls/ctn 45.5*34*30.5cm 50mm*50m " " 24rolls/ctn 27*27*32cm 48mm*10m " " 180rolls/ctn 37*31*30.5cm 50mm*7m 1roll/pp bag 60rolls/ctn 38*29*26.5cm