P-423 NAT has outstanding bond ability without a liner. The bondable backing offsets the anti-stick property of a conventional PTFE film for uses requiring the coating to wet out and adhere to the tape surface. Provides unsurpassed dielectric strength for its thickness over the widest range of temperatures for high voltage insulation. - Tough, high abrasion and shows great tear resistance. Excellent conformability. A treatment of the film helps to create bond ability without the use of an interliner. The ideal tape where electrical varnishes and epoxy resins are used.