Poly Tetra Flouro Ethylene Thread Sealant Rope is available in circular cross-section of sizes ranging from 3 mm to 10 mm and in square cross section of sizes ranging from 4 mm to 12.5 mm. Aflon Engineering Corporation offers Poly Tetra Flouro Ethylene Thread Sealant Rope. Aflon Engineering Corporation supplies a wide range of PTFE, TEFLON, HIFLON products for various industrial applications. The Poly Tetra Flouro Ethylene Thread Sealant Rope is a universal rope suitable for use in all types of industrial gaskets.