Here's a neat trick if you find a rubber section which is ideal for your PVC boat. DO NOT JUST GLUE IT ON. You can prevent the PVC plastisizers from permeating the joint by using the following method.
Use Hypalon adhesive on the rubber (rough the surface first with 60 or 80 grit using acetone or cellulose thinners to wet the surface as you abrade it). Apply a second coat of adhesive. You must let it cure completely. Not dry, but cure fully. It depends greatly on temperature so give it a couple of days to be sure (to be sure).
Now you can join the rubber to the PVC with complete success using the PVC method.
I've never glued Polyurethane so can't comment on it. Tornado boats are often this, not PVC.
I used to own a Bombard SIB. Modified it greatly with no failures. That was 9 years ago and it's still doing fine. Even motored it out to St.Kilda and back single handed from the Outer Hebrides. (No one was daft enough to join me.)
Hope this helps someone.
JW.
Found it! Thanks JW. :-)
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Yoyo.
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