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PTFE, or polytetrafluoroethylene, is a TeflonÂ®-coated woven fiberglass membrane that is extremely durable and weather resistant. PTFE fiberglass membranes can be installed in climates ranging from the frigid arctic to the scorching desert heat with a project life in some cases exceeding 30 years.PTFE fiberglass coating is chemically inert, capable of withstanding temperatures from -100Â°F to +450Â°F (-73Â°C to +232Â°C).TFE fiberglass membranes can be installed in climates ranging from the frigid arctic to the scorching desert heat with a project life in some cases exceeding 30 years. PTFE fiberglass coating is chemically inert, capable of withstanding temperatures from -100Â°F to +450Â°F (-73Â°C to +232Â°C).
TeflonÂ® PFA (perfluoroalkoxy) coatings are non-porous, which makes them incredibly resistant to chemicals. Just like FEP, it was designed to melt and flow. But it provides higher temperature resistance than FEP and is more durable. 1  Superior resistance to chemicals.  Non-porous coating.