Posted by gsmith on 07/30/10 - 9:43 PM
#1
I am sanding off the gelcoat all the way to the mat to get rid of spider cracks. I am using a belt sander (18") with 40 grit paper, it does pretty well but would a grinder be any quicker. I have never used a grinder but I would invest in one if it would make this job any quicker and easier. After reaching the mat should I seal the fiberglass with a primer or sealer before the gelcoat.
Thanks