Join Date: Feb 2010
Location: Narragansett Bay
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Re: Ideas for interior bulkhead coatings?
I'm not really clear what the end game is. Are you simply trying to smooth out the interior surfaces, are you doing any cabinetry work, etc? Are you fitting out for day sailing or cruising? These might help with how durable a solution you require, or whether extended effort is worth it.
If you know these surfaces were painted with home depot house paint, I doubt anything you put over it will stay as long as you like. You're adhering to the paint, the paint is adhered to the glass. I'm afraid you'll need to strip the paint first to skim coat.
Another option for skim coating is heavily thickened epoxy. Trowel it on, then smooth with an orbital sander when dry. It would still be a ton of work!!
Whatever you do, the dust and fumes require a good organic filter respirator, not a dust mask!
You could consider making liners out of something like 1/8" to 1/4" marine plywood. Epoxy wood strips on to the hull and ceiling every 12-18 inches or so, running perpendicular to the span of the liner, to be used to hold the plywood panels down with commercial hook and loop (not just fuzzy velcro). This would only require grinding off the paint at those locations. After all the plywood is dry cut to fit, take it out and cover it all with vinyl. Dividing walls and ceiling into long individual 1ft - 2ft strips, would make the panels easier to handle. You could even glue some large soft piping onto the edges against bulkheads and overheads to finish off the corners better (or hide the imperfections in fit). It may require a couple of screws at the ends of the panels to really hold well, but these can be covered with a plastic washer that accepts a little snap on cap to finish nicely. You could screw the whole thing down, if you prefer it over hook and loop.
Big job. Good luck.
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In the harsh marine environment, something is always in need of repair. Margaritas fix everything.