Inventro Polymers offers Slit Type Polytetrafluoroethylene - PTFE Envelope Gasket. Inventro Polymers supplies rubber, PTFE [Teflon] and engineering plastic items. Slit Type Polytetrafluoroethylene - PTFE Envelope Gasket is used in chemical plants for long life sealing between two flanges. Slit Type Polytetrafluoroethylene - PTFE Envelope Gasket is also available in mill type and according to customer`s specifications. It can be employed at any temperature from -200 degree C to +260 degree C.