Hi folks, I have been sanding and sanding. Unfortunately I don't think back when I epoxied the first time I did a very good job of it, and there are some really big bumps where the deck fiberglass overlaid the hull fiberglass. i recall (and believe it or not, this was 7 years ago when I started...life gets in the way sometimes) that I wasn't happy with how the fiberglass shredded at the edge... anyway, it left bumps that were tough to sand out. I think I did the job, the hull is silky smooth...at least to the touch, but I still need to sand with 120 and 200 grit.
So here is my problem. I can SEE the pattern of the fiberglass beneath the epoxy. I can't feel it, and except a few very small places, I don't think I actually nicked the glass. But it shows as a light hashmark pattern in many spots on the hull and on the deck. I have a few spots where there is a pepper spray pattern of unsanded glass (little tiny tiny pockets peppered on the deck). So I KNOW I need to sand more...but I'm worried about those hashmark patterns.
Here are the photos: ( i tried to upload photos, but was not able to get it. Hopefully these flickr links work.)
Photo 1: Never mind the swirls. I know I have to sand more with a finer grit. This was from 80 grit paper.
Photo 2: Another view of the hashmark pattern.
Photo 3: The deck with hashmark pattern and pinpoint high spots
Photo 4: Uhg, the pattern keeps rearing its ugly head.
My questions are: Is this an indication that I've sanded too much epoxy away? Is it an indication that I'm ABOUT to sand through the fiberglass? If so, do I need another coat of epoxy and then repeat all the sanding I have already done? I'm hoping that isn't the case, but I suspect that it is.
I thank you in advance for any help you can provide today/tomorrow since I actually have time to either sand or apply epoxy tomorrow afternoon.