I'm fiberglassing some tweeter pods for my doors(92 gt) and had a question. I've got the first layer done and it turned out almost perfect in the shape I wanted it. However when I tried to put on another layer with fiberglass sheets before it messed the shape all up. One layer isn't hard enough though and bends too much. Can I just brush on some resin/hardner to the exisiting piece that i have and it will help harden it up or do I have to put down more fiberglass sheets?