Re: epoxy board??

I like the idea. It keeps the interior light and weak, but adds strength as you get closer to the board surface. Pressure bnuildup would be a problem except for two things. 1) you can’t lay the board on wet epoxy/microballoons, so you’ll coat one side at a time, outgassing between coats. 2)When you sand the epoxy and microballoons you’ll expose enough foam to complete outgassing before lamination. Good system!