The F69-12MM is a Glass Cloth Electrical Tape with silicone pressure sensitive adhesive. Thermosetting adhesive provides an increased bond once applied in areas of high ambient temperatures. Insulating electric and induction type furnace power supply leads. Splicing silicone-covered glass wire where splices require more abrasion resistance and mechanical strength than can be provided by silicone tapes. Reinforcing insulation in electrical installations where heavy loads cause high heat and breakdown of original insulation (e.g. motor control exciter feeds).