Truoil can also work as a filler by wet sanding with fine sand paper. Fills the pores with the same wood for a perfect match.
Thanks Kigar I had no idea that you could use it that way. After you wet sand with it do you just wipe off the wood surface?
As mentioned earlier, I don't usually fill. That said, on a few instruments - bent wood stuff where I wanted the finish to be reminiscent of classical eras - I've used egg whites and wet sanding. Followed with amber shellac you get the antique violin look.
It's a fairly long process, but it does do the job.
Now that is very interesting Doughboy. Thanks for the information. I have always liked the antique violin look. If I get into that anytime soon I may try to contact you to answer any questions I may have.
I just give the fret board several coats of mineral oil (baby oil ) and let it dry. When I change strings I clean the fret board with a slightly moist Mr. Eraser and dry it. Then I re-apply oil.
Here's a pretty good link - to the point - regarding the egg white technique