On 7/8/2012 12:51 PM, scritch wrote:
On 7/8/2012 10:39 AM, Sonny wrote:
What does her damage look like? White cloudy film? White spots?
Black spots?

Try rubbing an inconspicuous spot with lacquer thinner, to see if the
finish is lacquer.

Grand pianos can have a lacquer finish and/or rubbed oil finish.
Black lacquer was/is a long time favorite.... often a dozen or 2 or 3
of polished in coats.



Not really cloudy. Very dull, roughened, sort of wrinkly in spots.

The same test you used for shellac (applying a small amount of alcohol) should
also work for lacquer (apply a small amount of lacquer thinner). If it's
lacquer, the finish will dissolve in the same manner as shellac (and then "dry"
back to a cured state). Sounds to me like it's probably an oil based varnish
of some kind. Lacquer thinner might also attack that (or not), but in that
case the finish would not dissolve but would break down, congeal, and be ruined.

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