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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).
If a pan has a Teflon coating, it will have a blue Teflon label clearly showing on the packaging. Most nonstick pans use a nonstick coating that is similar to Teflon, but is not Teflon.Some are more durable, like the ones used by Calphalon, Analon, and AllClad.With proper use and care (no high heat cooking, no Pam, no metal utensils) they will last 20 years.ost nonstick pans use a nonstick coating that is similar to Teflon, but is not Teflon. Some are more durable, like the ones used by Calphalon, Analon, and AllClad. With proper use and care (no high heat cooking, no Pam, no metal utensils) they will last 20 years.