matttyl said:
Might need some advice with a little project I have going. I found an older butcher block kitchen cart, which looks a lot like
this one (though very used). It doesn't have an outlet strip, but that's something I might do myself.
Anyway, I'd like to "re-purpose it" for some outdoor use, for use as a small bar. It actually has a sink bay cut out of it, and I hope to find a "dry sink" to put in there. I'm going to sand it down, starting with 100 grit paper and going down to 220 or so. After sanding, though, I'm unsure of what to do to "seal it". What can be used to keep water/beer/wine from penetrating the wood? Is this a situation for polyurethane? Stain? Thanks!
That sounds cool. If you want it to keep the wood finish, I'd do a few coats of Dewaxed Shellac then cover with a Spar Polyurethane.
The Dewaxed Shellac is sort of a universal sealer. It brings out some of the natural color (more of an amber) of the wood, and seals it up. Since it was used as a butcher block, who knows what kinds of things seeped into the wood over the years. The shellac will keep them locked in, as well as give a nice even finish. Put a few coats on, and knock down any raised grain with 400+ grit sand paper after each coat. Once that's done, you should have a really smooth finish.
Then, apply a nice Spar Polyurethane. Use as many coats as you can. Go one with the grain of the wood, then scuff-sand, then do the next against the grain, scuff sand, etc. If you want a really good finish, use an HPLV sprayer or something for the last coat. It'd take forever to do every coat with a sprayer b/c they don't offer as much build-up, and you want a nice thick finish, but for the last coat, a sprayed on finish will really look good.