I bought the liquid from a place that sold Zodiacs, a Google search
should find it. It lasts for a while, the only permanent fix is to go
buy boat made from hypalon.

My advice is to save your money, unless a temporary fix is what you are
looking for.

andrea wrote:

My old inflateble 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.