So for some reason i have a ton of little bubbles on the surface of the epoxy on the inside of one of my hull panels. I sanded it down with 80 grit so far and the surface feels smooth but you can see lit the little holes from the bubbles. Do you think i need to sand the bubbles totally out, or can i get away with leaving it along and let the paint smooth out the surface. The holes are very tiny. Also anyone know why this could have happened so i can avoid it in the future?