[Dan in Pasadena]

Originally Posted by duramax55

i have done some fiberglass parts and what i did was make a wood piece then cover with plastic and lay fibergalss cloth and resin. When dry remover wood and then you can build it up with more fiberglass once sturdy enough sand and mud till smooth

Ok, thanks. So you're saying the plastic acts as the release agent? When you remove the wood backer (in my case wood & cardboard OR possibly aluminum) does the plastic stay attached or does it come off?

Thanks for the advice.