If you want to try neoprene find a fishing shop that does neoprene wader repair or a scuba store that does neoprene repairs. In the fall/winter most scuba stores will sell off old beaten up wet suits for next to nothing, you won't even need the whole suit.

Doug

Sorry to contradict your idea Doug, but I found wet suit stuff is NFG for gaskets in any pressure type use. (Unless you could remove the nylon surface)

ah good point.

Doug