Silver Tape is backed with aluminum foil and rubber adhesive for sticking perfectly to the surfaces. The aluminum backed tape features a high-tack, pressure sensitive adhesive that bonds equally with regular, irregular, smooth and powder-painted surfaces. This silver tape is ideally used for patching and seaming tears in sheet metals, metal ducts, aluminum backed fiberglass and thermal insulation systems. Insulation tape has high heat reflectivity and thermal conductivity features to protect heat-sensitive apparatus from vermin, high and low temperatures, moisture, and fire smoke.