... resistance of the seal. TECHNICAL DATA MATERIAL:100%expanded PTFE (e PTFE)with multidirectionally oriented fibril structure.CHEMICAL RESISTANCE:Resistant to ... to ageing4,Physiologically safe5,High strengthKEY BENEFITS:1,Increased residual gasket stress2,Greater blow-out resistance3,High operating safety4,Wide ... 0—146,Highly conformable to the sealing surface7,Straightforward installation PTFE gasket