First two coats of epoxy primer

After cleaning blush with isopropyl alcohol and sanding plywood and epoxy with 80 grit paper I applied two coats of white high-build epoxy primer. The first coat was absorbed by wood as much epoxy would be. The second one created some build up. I think that I need at least another layer, may be two, to hide wood texture. But this is a wooden boat, so why hide wood texture?