ORIGINALLY DEVELOPED FOR THE MILITARY, X-TREME TAPE IS A SELF BONDING WRAP MADE FROM A SPECIAL HIGH QUALITY SILICONE RUBBER COMPOUND WHICH ADHERES TO ITSELF WHEN WRAPPED UNDER TENSION. IT FORMS A NON-CONDUCTIVE, AIR & WATER TIGHT INSULATING SEAL WHICH STAYS FLEXIBLE AND WONT CRACK IN TEMERATURES FROM -60 DEGREES FARENHEIT TO +500 DEGREES FARENHEIT. - X-CELLENT FOR: