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 a particle size varying from {HEAD ~ 10 to 0.1 microns} in {TAIL ~ size} bonded together with polytetrafluoroethylene to prevent leakage of the gaseous fuel or oxidant from the cell 
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 a particle size varying from { HEAD ~ 10 to 0.1 microns } in { TAIL ~ size } bonded together with polytetrafluoroethylene to prevent leakage of the gaseous fuel or oxidant from the cell
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