Do a google search with,

fixing porous inflatable

It's the first entry.

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"j" ganz @@
www.sailnow.com

"Brada" wrote in message
...
My old inflatable has become porous. It's made of the neoprene, not
hypalon.
Have heard about some liquid that impregnates the rubber from the inside.
One is supposed to sip it into the chambers. Please if anyone knows where
to
find it (web address). Any experience?
Thx in advance.