J.V. Converting FELT-065/COP21667 JVCC FELT-065 Polyester Felt Tape: 2" x 50 ft, Copper Carrier/backing: polyester felt. Adhesive: synthetic rubber Thickness: 69 mils (carrier, adhesive, liner) 59 mils (carrier, adhesive) 10 mils (liner) Adhesion: 130 ounces per inch (to stainless steel test panel) Service/operating temperature: -30F to 150F. Application temperature: 60F (minimum) Release liner: paper (reverse wound)