3M™ glass cloth Electrical Tape 27 is a 7 mil woven insulating tape with pressure sensitive rubber thermosetting adhesive. This tape is designed to operate in 600 V dry applications requiring high mechanical strength and resistance to high temperatures. The adhesive is specially designed and prepared to provide corrosion protection. 3M™ glass vloth Tape 27 is edge tear resistant, conformable and abrasion resistant. For use as a coil cover, anchor, banding and core, layer and crossover insulation. UL Recognized. Printable.