3M electrical filament tape 1046 is a solvent-resistant, high temperature filament tape with thermosetting rubber adhesive. Designed for applications needing both the dielectric strength of polyester film and the high mechanical strength of glass fibers. - Offers the ultimate in low stretch, high tensile and edge tear resistance for a more cost-effective solution to glass cloth tapes. Designed for insulation in dry-type transformers, motor winding and end-turn wire-hold applications and more.