fiberglass resin works, actually if you have small amounts of hardener it eats it up, make it a fast setting mix of resin, the faster it sets the less it will eat away.. ray non hardened resin eats foam, quick hardening doesnt have a chance to eat it..
And the resin hardens and melds with the foam making for a even stronger bond in the end.. works good, add fiberglass or even cloth to make it really strong.. the nose on my CRX project is all fiberglass and foam with a thin layer of bondo to smooth it out.. to make it look perty
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