Why Gaskets are used? A leak from the flange joint can be disastrous. A flange leak results in loss of product and energy. No plant operator wants leaking of toxic or hazardous material that can harm human and environment. The gasket can help in achieving reliable sealing to prevent the leak from the flange joints. Other products you may also interested: 1. ptfe skived sheet 2.ptfe gasket 3.ptfe thread seal tape 4.pure ptfe sheet 5.ptfe plates