Plug is foam wood glass. Lots of bondo. Some urethane primer. A couple coats of acrylic urethane to give me a hard surface. Was going to score the panel lines, but I've decided to use 1/32 tape. So I need a high build again.
So can I eliminate migration with a sealer coat? Or will I need to make the mould out of gel/polyester resin. I have lots of experience with this stuff, not much epoxy experience.