Michael Dresdner

straight talk about wood finishing

Q: Would Mohawk Finisher’s Glaze be safe to use over shellac, spirit varnish and oil varnish, considering it contains methanol?
A: Yes. The amount of methanol in the mixture is very low, and you would probably have no problems at all. About the worst that would happen is that it would bite more aggressively into alcohol soluble finishes such as shellac. That means you must work more quickly, and may not be able to wipe off the glaze completely should you change your mind. Incidentally, there is some disagreement about the definition of the term spirit varnish. Some insist it means any varnish that cures solely by solvent evaporation, while others point out that historically, it was often used as simply another term for shellac.


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