Clay or Foam?

[T-Type]

Originally Posted by Mrfixit

I've used foam for some custom interior parts. To make release simple, after I completed my foam mock-up I covered the whole piece with masking tape because resin will not stick. The fiberglass piece simply popped off and allowed me to reuse my mock-up for multiple pieces.

Good Luck.

Did you use the home type foam as well? I'm assuming it would sand pretty easily.....

Thanks for all your help guys. The link is appreciated as well.

[Mrfixit]

Originally Posted by T-Type

Did you use the home type foam as well? I'm assuming it would sand pretty easily.....

Thanks for all your help guys. The link is appreciated as well.

If you cover it all with masking tape, you can use anything you want because the tape creates a barrier that the resin cannot penetrate. I used simple Styrofoam that I got from a craft store. The shape I was going for was pretty simple so it was quick and convenient. If your going for a more complex shape, you'd be better off buying better foam.