For use up to 600 volts. PVC film coated with a non-corrosive rubber based adhesive. Resistant to water oils acids alkalis and other corrosive chemicals. Lead free. Temperature range from 32 to 176 degrees F. Used to repair frayed wiring splice wiring protect wire nut connections resurface and insulate hand tools and general purpose maintenance and repair. 7 mil. thick. UL Listed and CSA Certified.