.03" Thick High Temp Silica Tape With Adhesive, 1"X8" Strips, 2Pk, This High Temp Silica Exhaust Sealing Tape Can Be Used To Seal Joints Anywhere On The Exhaust System, From Exhaust Ports To Muffler Tip. Adhesive Backed For Placement During Installation, This Tape Effectivly Seals The Exhaust System From Leaks At Couplings. Max Operating Temp Is 1800 Degrees F.