... aluminum foil duct tape1.Material : aluminum foil 2.Thickness:18,20,25,30,40,45,50,75mic 3.Adhesive:solvent acrylic aluminum foil duct tapeCompounded Aluminum foil ... are composing by aluminum foil, fiberglass cloth, mesh cloth ... insulation, pipe insulation, and other vessels Specifications:1) Foil thickness: 18, 22, 25, 30, 36, ...