Two questions for the group:
1) I think I did a fairly messy job fiberglassing and applying epoxy to the hull and sanded today, first with 80, then with 220. After several hours of sanding, though, the surface is still somewhat bumpy...traces of drip marks and fiberglass strands are all visible. The hull is smooth enough for me to rub my hand over without any problem, but I just want to check to see if I should sand it until it's completely smooth (which seems like it may take many more hours). I've already applied three layers of epoxy; should I apply a fourth to smooth things out, or would that only make things worse?
2) I was sanding the hull outside largely in the shade this morning but sunlight was striking one part of the boat. There are now some air bubbles under the fiberglass in the spot where the sun was hitting the boat. Any thoughts on this?
Thanks for any advice.