I layed resin only on top of the box after I covered it with a cloth, than I flipped the box over and layed the actual fiberglass on their. So the box is strong and sturdy, now since i only have resin on the top, do I NEED to lay any fiberglass on top of it,? Also when I was stretching the cloth I got some few minor wrinkles that are showing still, I use bondo auto filler for that than sand correct? Thanks this forum has ben very helpful.
