TIP'S ON FIBEGLASS pt2

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POLYURETHANE FOAM

the reason im writeing about foam when im talking about fiberglass, is that you can make mold's out of thing's. just fiberglass over it then get some acetone and it will eat the foam and keep your fiberglass mold.

they have 2pt. polyurethane foam that is equal mixing self-rising foam. most 2pt. will start foaming around 45 second's after you mix the two, and will go for a few minute's after. now it will expand around 25-30 time's it's liquid form. unlike polyester foam, polyurethane foam it's compatible wth both polyester resin and epoxy resin. (which mean's you can paint the resin on and it wont evaparate)

now they have polyurethane foam sheet's allready in block's, so there's no mixing. what make's this foam better then other's is that unlike green floral foam it wont leave imprint's if you hold it to tightly.

(they have all kind's of foam's, polyurethane, polyester, urethane just to name a few. one of the most common foam is the stuff you find at wal mart or hardware store's. it's call GREAT STUFF you might have seen it on the self's)