A high pressure, low porosity wet seal for a substrate in a fuel cell in which the seal is made up of a granular material having {HEAD ~ a particle size} varying from {TAIL ~ 10 to 0.1 microns} in size bonded together with polytetrafluoroethylene to prevent leakage of the gaseous fuel or oxidant from the cell 
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A high pressure , low porosity wet seal for a substrate in a fuel cell in which the seal is made up of a granular material having { HEAD ~ a particle size } varying from { TAIL ~ 10 to 0.1 microns } in size bonded together with polytetrafluoroethylene to prevent leakage of the gaseous fuel or oxidant from the cell
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 HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH