Glass Cloth Masking Tapes are used in powder coating, stenciling and the blasting industry to mask areas that do not require coating or blasting. They can be used for insulating coil connections and cable harness wrapping. Glass Cloth Masking Tapes can also be used as a permanent sealant for high temperature ducts and chambers. They are known for their high temperature resistance. Glass Cloth Tapes are made of 5 mil thick glass cloth film and 2 mil thick high temperature thermo-setting silicone adhesive. These masking tapes can withstand temperatures of up to 390°F and are packaged on a 3" core.