2016-04-05

Post XLVII - Waterline & Paint Coat No. 3


Just a quick update today showing progress on painting. Now that I've finished varnishing the inside and gunwales (thank god) it was time for a final coat on the outside. It's been a couple of months since the first layers of blue went on and that stuff is all cured up now. It's important not to layer up too much easypoxy in one go. 1 or 2 coats max and then leave it for awhile. If you layer too thickly without leaving time for a full hardening, then it seems to go rubbery and takes forever to dry.

Given that the original paint was fully cured, i thought it would be a good idea to do a quick all around wet-sanding to texture the original paint and give the new coat something to grip. 


Figure 243: Wet sanded with 320 grit



Next, I taped off above the waterline with 1-1/4" masking tape. This leaves a gap between the graphite epoxy bottom coat and the gloss blue to accommodate the waterline stripe. This was followed by a new layer of blue. You can see my old fiberglass canoe here too -- it's in need of some serious TLC, paint being a part of that, so I painted it at the same time. Tape was removed shortly after; it's a good idea to do this just after the paint tacks up, but before it hardens completely. 

After letting the blue cure for 2 days, I came back and taped off the waterline stripe. This received 2 coats of easypoxy gloss white. With tape removed, the finished waterline stripe looks pretty damn good I think. 

Figure 244: Gloss blue coat all dry, with waterline above just prior to tape removal


Figure 245: Waterline stripe all done



And here demonstrates the need to let the first coat dry overnight before applying the second. I did 2 coats in pretty rapid succession with the white to hide the blue underneath. the paint job looks good, but it is still rubbery 3 days later. It'll cure eventually, but will take longer than if I had done it properly. 

Not a big deal anyway, the boat needs to stay upside down while I fabricate and install the rub strip on the keel. More on that next time!

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