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Well, I finally had the correct conditions (work and weather)to continue with the gel coat. I mismatched the color for my initial overlay and my prep for redoing the overlay was a blessing in disguise. Two observations of note.

One. There was a tiny area of my repair where I missed SB 112 "primer" over a spot that was repaired by Splash Zone. I brushed on my gel coat anyway. When I sanded for prep of my new overlay coat it was the only area that flaked. The outer shell looked identical to all the other repairs but it "chipped" at this one spot. I did have a rough sanded finish and an acetone cleansing over the entire work area beforehand so my first coat of brushed on gel coat could fill voids before spraying. None of the other areas with the SB 112 flaked or chipped.

Two. As I sanded the areas for my new brushed application of gel coat I found that my sloppiness of the SB 112 created a lot more work. I over applied the primer thinking that it would aid in blending. All it did was create an irregular surface that left more sanding. The SB 112 has a specific time window to work with and once you miss it, you need to remove it. My sanding brought up some of my splash zone to the surface (I was fairly aggressive with the sanding for color removal of my mismatched gel coat). I am now going to daub it on the specific areas with a small brush (flux brush for copper soldering) keeping as clean as possible.

Other than these bumps in the road, the repair is acting/proceeding like I thought it would. I am purchasing a die grinder to chase some of the spider web cracks for additional repair while all is exposed. Also some additional tubing for brass drain replacement while all opened up. "Replacing the faucet washer" is slowly becoming a kitchen. I am so glad I am emotionally resolved to miss the boating season this year.

Garris