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