Expanded PTFE Joint Sealant is an inorganic sealant for static applications made of 100% PTFE.And thetaple is with one side adhesive. It has excellent characteristic.Corrosion-resistant, flexiable, convenient, it's also used for seals in glass, enamel, flanges etc. Temperature Limit:-268°C up to 316°C Pressure Limit: Full vacuum up to 3000 psi(210bar) Applications: Fume ducts,steam vessel flanges, concrete lids, manways,glass joints, ceramic joints,hear exchangers,water systems,hydraulic and pneumatic systems, fiberglass reinforced plastic vessels, pump or compressor housing flanges, or practically any other industrial equipment where you require a long-life, trouble-free seal that cuts maintenace costs. We have different grade of PTFE Joint Sealant as customers request Grade A: Japanese raw material & 3M advesive Grade B: Export to Europe/Japan/North America mainly Grade C: General grade