Q: I’m restoring a Martin guitar, and after staining, I added three very light wash coats of 1lb. cut shellac. I’d like to strike the pores black with Finishers Glaze seal with sanding sealer, fill pores with Bartley’s dark, seal and topcoat. Martin mahogany pores are darkened nicely. I’m trying to do it the right [...]
Q: I stripped an oak fish tank stand and applied two heavy coats of espresso colored Varathane oil stain, leaving it sit one hour before wiping it off. I then applied two heavy coats of Watco Teak Oil and left them overnight. I found a sticky, gooey mess in the morning. When I tried to [...]
Q: We want to do a comparison of the performance of a variety of solvents for shellac:Lee Valley’s Shellac/Lacquer Thinner; a lab grade of denatured ethanol and common hardware store methyl hydrate. We plan to prepare samples of blond shellac, mixed in each of the three solvents, apply them to wood samples and test the [...]
Q: Is the resistance to strippers a sure indicator of a polyester finish or does it merely suggest it? A: It suggests it, but is not an indicator of polyester alone; it is merely an indicator that the finish is highly cross linked. Polyester is probably the most common of the highly cross linked finishes [...]
Q: Short of sanding it off, is there any way to remove a polyester finish from guitar sides? A: Yes, but it might be faster and easier to sand or scrape it off. For guitars with solid sides, you can make the job easier by working it off with a heat gun. When heated, polyester [...]
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