... of the seal. TECHNICAL DATA MATERIAL:100%expanded PTFE (e PTFE)with multidirectionally oriented fibril structure. CHEMICAL RESISTANCE:Resistant ... indefinitely. KEY FEATURES:1,Made from 100% expanded PTFE(ePTFE)2,High chemical and thermal resistnce3,Resistant to ... Physiologically safe5,High strength KEY BENEFITS:1,Increased residual gasket stress2,Greater blow-out resistance3,High operating safety4, ...