Surfing Waves

i bought a used board that has a few dings and cracks. will bondo work to fill these cracks and stay water-tight? ingredients say that it's polyester resin based.

most of the fillers that i have seen are basically just epoxy, and it doesn't look like anything is bad enough to need new glass.

basically, i'm wondering if i can save myself a trip to the shop by using something that i already have in my workshop.

ps: i'm not too concerned about this looking pretty-- just staying water-tight.

I have no idea about bondo...Never used it before. I just say I use suncure....its just too easy to use. I wouldnt chance it, though like I said, I am no expert on it.

Don't do it , it may damage the foam , instead buy Solarez or a fiberglass kit( Big Swell repair kit works fine ), sometimes cheap solutions makes it much MORE expensive. If you buy the fiberglass kit try it out first on an old board just to practice and when its done don't sand it too much.

This stuff its fleshin great, fixes epoxy and poly boards in seconds, mixes in a minute, can be applied to wet areas, it even cures underwater, it also dries white. And its cheaper, well over here, than most of the other repair kits.

I know it is well after the original post, but it is important to share some information about bondo. Bondo is not waterproof. It does not seal or keep water out. That is part of the reason it is primed and painted when applied to motor vehicles. Most auto body guys know this, but many folks don't. It can still be used, but requires sealing the surface with resin prior to applying it and also on top of it. Be sure to use sanding resin. It is better to us Q-cell or chopped glass mixed with resin for a filler because it is lighter than bondo. These materials are also far stronger, too.