... 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 ... in air-conditioning and sealed joints of heating duct systems, automobile, train compartment insulation, pipe ...