We didn’t have a RIB
, but we used dinghy bottom paint
on our inflatable
(which we no longer have). I believe it was the Petit paint
It held up well and although we would still get slime, we didn’t get any other sea life growing on the bottom. When we deflated the dinghy and put it on the foredeck, the paint
did not rub off onto our boat
We painted it as soon as we bought it so I don’t know how well it would adhere if you couldn’t get the bottom completely clean before painting.