This form of joint sealant is specially processed by expanding 100% pure polytetra-fluoroethylene (PTFE). It provides a soft, highly compressible gasket for longer life and trouble-free sealing. Its form-in-place versatility cuts maintenance and storage costs. The high compressibility of Topog-E® Series 3000ET enables it to effectively fill flange imperfections for a tight, leak-free seal. Under pressure, it provides a very wide, thin ribbon-like joint sealant. Unlike conventional PTFE which is prone to cold flow, Topog-E® Series 3000ET has good creep resistance and bolt torque retention properties. It does not support bacterial growth or cause product contamination and is FDA compliant. It has virtually no shelf-life concerns since PTFE is unaffected by normal environmental conditions.

Topog-E® Series 3000ET has excellent resistance properties to chemical attack with a pH range of 0-14. It is ideal for most chemical services at temperatures to 600°F (316°C) and pressure to 3,000 psi (207 bar). It is also suitable for cryogenic use to -321°F (-196°C).