Are you using fiberglass resin for pepakura props?

[crabra comander]

That totally depends, as long as it hasn't warped you should be fine with the mod podge coat. If nothing else that will water proof it and add a very tiny bit of strength.

If you're trying to keep things non toxic you can coat the inside of the piece with cheese cloth and pva glue. As an alternative to body filler on the outside to smooth the piece you could have a look at paper-mache clay. It's a non toxic easy to form material that dries with a little bit of strength. Paper Mache Clay

Keep in mind with the non-toxic alternatives you won't get the same kind of strength as fiberglass and resin but as long as you don't go out of your way to damage it, it will be fine.

:thumbsupThanks, budget is always an issue with the finance dept. AKA the other half

 

[Weapioneer]

I need to find a substitute for resin, maybe Polyurethane resin or water based resin, because i have trouble using fiberglassing kind, and not a great deal of personal protection equipment. How effective are PU resin and water based resin? are they on par with fiberglassing resin? can layers of cotton fabric be used instead of fiberglass cloth for reinforcement?