Join Date: Jun 2003
Location: New Lenox, IL-USA
Re: What to do about a dry rosewood board?
You need to DEEP clean you boards with "Simple Green" to remove all of the gummed up waxes and solidified oils that are IN your board (these are what's keeping the bore oil from penetrating)
Use an old tooth brush to scrub with but keep the board wet.... allow the simple green to penetrate VERY deep. It WILL break down the gunk. It might take a few application/drying cycles to get the gunk to come out, but it WILL come out.
Allow the boards to dry AT LEAST overnight....... then sand them with 320,400,600. clean up the dust as well as possible then it's time to re-oil.
A little trick I've used is cutting the bore oil with naptha (dries very fast, but penetrates better than without). You can also use turpentine or kerosene for more working time. Mix it a 4:1 (bore oil:thinner) you should only need one application but it might take two... just play it by ear.
After you've gotten it to soak in DEEP and air dry, hit the board with some #0000 steel wool. Last, apply an uncut layer of bore oil..... let it sit for a half hour or so then buff it with a clean cloth. You might have to re-polish your frets when your done, but your whole board will look amazing afterward.