When clamped between {TAIL ~ flange surfaces}, the edge coating engages, conforms to, and seals against the flange surfaces to provide a seal against both interfacial and intersticial migration of fluid past {HEAD ~ the gasket} 
When clamped between
When clamped between { TAIL ~ flange surfaces } , the edge coating engages , conforms to , and seals against the flange surfaces to provide a seal against both interfacial and intersticial migration of fluid past { HEAD ~ the gasket }
REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD