Xtreme tape was developed for the military and has some very unusual properties this silicone-based tape will stick only to itself, and only when placed under tension. Once araound an object, it forms a nonconductive, air/water-tight, insulating seal that remains flexible within a temperature range of -60 to 500 degrees F. Great for a myriad of uses. Radiator & Garden Hose repair, Plumbing & Air Ducts, Electrical Connections, and great for overall household and shop