DiversiTech's Cork Insulation Tape is a polymer-based material containing butyl rubber, asphalt, and granulated cork (55% by volume). It contains no fibers. This tape is formulated to provide insulation and to prevent condensation on pipes, fittings, and tubings used in heating, air conditioning, refrigeration, and plumbing. It can also be used on hot pipes.
Poly Tape is a convenient and easy to use product which complements the Nomaco Insulation tubing and sheet insulation products. It is supplied in 3 mil thickness by 2" width by 36 yards, with a solvent acrylic adhesive for applying to hot or cold pipe fittings. Poly Tape is designed to perform in direct sunlight and is 25/50 rated for flame spread and smoke developed. It is waterproof and designed for indoor or outdoor use. Its function is to cover circumferential/butt joints, copper couplings and press fittings to ensure the seams from popping open.