I must have done something very wrong. After going to the shopbot camp here in phx, I thought I'd try a little blue foam carving for a project for my son's birthday. Purchased the blue foam from HD, carved, primed with Kilz II, then epoxy. The epoxy went thru the Kilz and began to eat at the foam before hardening. I also tried to prime with a pva primer and had the same reaction. Any ideas what I'm doing wrong. I'm pretty sure I'm getting a good coat of primer over the entire surface... My question is what primer/coating are you using to seal the foam before epoxy. I know Bill P gave some information on this but don't have anything from my notes.
Thx,
Fred