View Full Version : Bad fiberglass job on wood strip stand up paddleboard

05-05-2013, 07:48 AM
I built a strip planked stand up paddleboard and are now attempting to apply fiberglass fabric. Not having done it before I think I've messed it up badly as it looks terrible. In some places on the hull the weave shows through, in others the epoxy has puddled and is smooth. There are a couple of areas where the fabric puddled. Should I sand the smooth area and recoat or take a heat gun to the whole mess and start over? I'd appreciate any comments ou there.

05-05-2013, 08:21 AM
From what little info you have given us, I'd tentatively suggest trying to save it by doing the sanding and re-coating thing. It typically takes several coats to fill the weave in any case. BUT, first I would do a lot of reading about the best way to do all this!! Try these links and read all that you can elsewhere, too. With good practices even a novice can do this well.


Good luck!

05-05-2013, 07:23 PM
There was another thread just like this recently. The consensus was that it was a case of too much resin. You only need to put on enough resin to saturate the glass. When the first coat of resin is done, it should just look like wet fabric, with all the weave showing. You can then put a second coat on, once the first coat is hard but still curing, to fill the weave.

In answer to your question though, I think it's good advice to see if you can save it but it's not what I would do. You've probably put a lot of effort into the woodwork so you'll want to be very happy with the finished boat. My response would be more emotional than technical! Personally, I'd want to rip that coat off and start again. It's quite easy with a heatgun, as you suggest, to peel the glass off and sand the remaining bits of resin. I would DEFINITELY follow the advised links above!


05-07-2013, 04:35 PM
Just finished my first build. It's always about solving problems. My build was not smooth but ultimately it was saved and is now in use. My point of emphasis is to thoroughly mix the epoxy. Second find a method of applying works best for you. I had better success brushing than rolling.

Hugh Conway
05-07-2013, 04:41 PM
Not to drive someon away but ime the needs of glassing a surfcraft are a bit different (either from history or necessity, don't really matter) than boats, so you might find more help over at http://www.swaylocks.com/forum/general-discussion. or http://grainsurf.com/

without pictures I'm not sure if I could offer any good diagnosis.