3M filament tape 1039 is a conformable, solvent-resistant, high temperature filament tape with acrylic adhesive. Designed for applications needing both the dielectric strength of polyester film and the high mechanical strength of glass fibers. Excellent for anchoring lead wires to banding coils and end-turn taping. 3M filament tape 1039 tape construction offers a strong tape backing with an adhesive that provides a durable bond to substrates. It is designed to withstand such stress as the high-speed coil winding process used for making dry-type transformers. Offers the ultimate in low stretch, high tensile and edge tear resistance for a more cost-effective solution to glass cloth tapes.