Gasket-Making Tape Specific Sealing Application For Compressed Air Systems General Purpose Thread Sealing Series Gasket making tape pure 100 Percent PTFE on a roll. Its form in place versatility cuts maintenance and storage costs. Overall Width 3/4 in Overall Length 20 ft Minimum Operating Temperature -321 Degrees F Maximum Operating Temperature 500 Degrees F Maximum Operating Pressure for Liquids 2 000 psi Maximum Operating Pressure for Gases 2 000 psi