Found this product at Home Depot http://www.homedepot.com/h_d1/N-5yc1v/R-100649620/h_d2/ProductDisplay?catalogId=10053&langId=-1&keyword=wood epoxy&storeId=10051 , I think I'm going to try it for filling in screw holes and the seams instead of Bondo before I lay down the fiberglass. Any thoughts on that stuff?