Copper Conductive Tapes are ideal for building ground systems. They are made from copper foil with an acrylic conductive adhesive. These conductive tapes are supplied on a paper liner for easy handling and cutting. The copper conductive tapes provide a very low rate of electrical resistance. The film is 1.5 mil thick with 1.25 mil of adhesive. Also known as EMI Shielding Tapes. Temperature rating is 155 degrees F.