Fiber Glass Tape Construction: Function: General purpose Backing: Lamination of Aluminum foil and fiberglass cloth Adhesive:Solvent-based Acrylic/Synthetic Rubber-resin Liner:PE coating, siliconized, flat, white, paper release liner Fiber Glass Tape Application: Sealing seams in industry and pipe insulation When a extremely strength tape is needed Good for foil fiberglass insulation repairs May also be used for other industrial uses requiring a tape with these characteristics and benefits . Roll Width: SlittedRoll: 48mm, 50mm, 60mm, 63mm, 72mm, 75mm, 96mm, 100mm Jumbo Roll: 1.2M Roll Length: SlittedRoll: 27M, 50M. Jumbo Roll: Up to 500M.