Michael Dresdner

straight talk about wood finishing

Oil based lacquer?

Q: Can I put oil based wiping polyurethane over oil based spray lacquer?
A: The simple answer to your question is yes, you can put oil based polyurethane, whether wiped, brushed or sprayed, over almost anything, including lacquer. For the record, though, lacquer is, by definition, an evaporative finish, while oil based finishes are, by definition, reactive. In other words, the terminology indicates the process by which the finish goes from liquid to solid film. Thus the term “oil based lacquer” is at best a misnomer. While one could make an evaporative finish using a stable resin derived from oil, that should still be called simply lacquer.