... in materials of PTFE, Nylon, and Solid Rubber,. PTFE Gasket Temperature: –400 to 500 degrees FFeatures: Cost effectiveness Ease of ... compatibility Versatility Low stress to seal Types: Envelop Gasket, Full Face Gasket, Ring Gasket, Flange Gasket. Applications:Semiconductor,Chemical Processing, Food, Pharmaceutical, Aerospace ... fillers or reinforcements to meet your unique applications. PTFE Gasket