When I started this build I told myself two things.
1. That I'd do the best job that I was capable of considering my experience at the time.
2. That I'd post the bad and the good online, so I could get reliable advice. Brag posts are for my Facebook page.
So I had a bit of a setback during the hull glass layup. I've layed up glass before, but never so much.
Anyway day dawned fine and hot so I got into it. I had decided to glass one side of the boat at a time with secondary bonding along the keel.
One layer 400g along the bottom running down the hull side. Glass isn't required all the way down the side. A second layer on top. Wet on Wet
So I started. Cut out the first layer of glass, and got it wet out in about 3 hours. It got hot, probably about 35 degrees C pushing 40 in that tunnel house. Even with WEST Slow I had to hurry at times.
That layer actually wet out ok. There were a few air bubbles here and there, but nothing to cry about.
After finishing at about 2pm I was buggered. So I went inside and took a break. I was beginning to feel the heat, which may explain why I left my bubble buster roller outside rather than in the container of acetone.
Anyway time for the second layer. The first layer was barely tacky by then and I was beginning to worry about getting wet on green without sanding.
So after considering whether I should just stop at one layer for the day, I started being in "get 'er done" mode. Mistake.
The problems started almost immediately. I managed to get the glass spread out fairly smooth with a bit of wrestling. But as soon as I started wetting out, bubbles! A lot of them, mostly small buried under the glass. I tried pushing them out with a lot of force from the squeegee, but I really needed that roller!
So anyway 7pm done, quick shower and off to a restaurant for tea. This morning I drilled out all of the bigger bubbles, injected epoxy in those that I could, filled the weave with epoxy thickened to ketchup consistency and put a first light coat of fairing on the sides.
But the more I look at the remaining bubbles the more it bothers me. I think that they aren't a structural issue, due to the first layer of cloth laying down well. I am worried about water getting in.
I know now how to prevent most of this happening again: Fill the weave between layers, and apply in the pm when it's cooling down. But I have a bit of pondering to do.
Photos to follow.