3M 7000006005 Polyester Film/Mat Composite Film Tape 55, 23-1/2 in x 72 yd, Log Roll, 1 Roll/Case3M 7000006005 Polyester Film Mat Composite Film Tape 55, 23 1 2 in x 72 yd, Log Roll, 1 Roll Case 3M 55 Composite Film Electrical Tape is polyester web reinforced polyester film coated with a rubber pressure sensitive adhesive. Edge tear and puncture resistant with excellent electrical properties, it is tough and conformable. It is . 0055 inch thick and is best used for coil cover, lead pad and core, layer and crossover insulation. Class B (130C);