69 19MM Electrical Insulation Tape, Glass Cloth, White, 33 m x 19 mm. The 3M 69 TAPE 19MM is a 3M™ Glass Cloth Electrical Tape is a white tape with a high-temperature, thermosetting and silicone adhesive. The thermosetting adhesive provides an increased bond once applied in areas of high ambient temperatures. For use as a coil cover, anchor, for banding and core, layer and crossover insulation. UL recognized for continuous use up to 200°C.