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Sunday, June 26, 2016

Deck Grinding, Repair, and Prep for Hull Paint

The thick old waffle pattern non-skid that was molded into the original gelcoat from the factory, has all been ground off. The vacuum attachment of the PaintShaver Pro tool, that was used for the grinding, collected %99 of the material. When emptying the shop-vac, I estimate twenty to thirty pounds of ground up gelcoat/fiberglass. That should make the boat faster, right?

Exposed laminate from non-skid removal


With the old white gelcoat removed, the fiberglass laminate was exposed to reveal numerous areas delamination from the plywood core. Some areas were quite large. Who knows how long these existed. But since the boat has been sitting for thirty years, the delmination is certainly not from stresses and strains on the boat. If anything the cause originates from the factory where the plywood core was not primed/prepped properly (to be fair, way back then in the 70s, boat builders just did not think, or even know of delamination problems).

The internal voids, created by the delamination, were repaired by strategically drilling holes in the deck down to the plywood core, at the site. Epoxy was then injected with a plastic syringe. In total about one to two quarts of epoxy was injected, which seems like a lot. The worst section was the cockpit floor where top of the entire removable rectangular section had separated from the core.
Clean(er) after thorough pressure wash.

Logistical conditions this summer are such that now is an ideal time to paint the hull. This will require a perimeter scaffold to quickly and easily move around the boat during the application process. It will also require removal and relocation of the original boarding stairs, which will finally give me access to properly finish the port side deck drain.
Beginnings of perimeter scaffold

...that is somewhat hacked, but should suffice.

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