Reflective Aluminum Foil Glass Cloth Thermal Insulation Waterproof 0.25mm Product Description Aluminum foil glass cloth is a laminated reflective insulation material made of a fiberglass cloth base bonded with an aluminum foil layer. It is also called reflective foil glass cloth, foil faced fiberglass cloth and aluminized glass fabric. Structure: aluminum foil + fiberglass cloth + adhesive laminated into one sheet, giving a reflective silver surface that lowers surface