Nick, I don't know that I can contribute much to your schedule, but I'd recommend against any electric polishers on lacquer. Far too easy to burn/melt NC Lacquer. If you want to polish, either french polish (sounds like you don't need that since you're not going for super high gloss) or just follow a typical sanding/polishing schedule. Sand to p800 or p1200 or whatever you desire and then rub with a polish of your choice. Probably pumice and rottenstone are out of vogue, but if you like the results and are familiar with the protocal, why not use it? For many folks, shellac/lacquer is out of vogue too, in favor of polyurethane. Are you spraying or brushing your lacquer? William R. Monroe www.a440piano.net Hello All, > > > > Seeing Dale’s B board prompted me to get your take on a finishing schedule > for lacquer on soundboards (Sitka, if it matters). Currently finishing a M&H > BB board, which has not yet been installed on rim. > > > > Thus far: > > > > Board has been sanded to 220 grit, sealed and colored with shellac flakes > and lacquer thinner (tawny – amber look), raised grain scrubbed with pads, > two wet coats of high solids lacquer sanding sealer wet-sanded out, one > heavy wet coat of high solids semi-gloss lacquer (amber) wet sanded to 400 > grit and steel-wooled to even out. Will go higher on the grits and wet work > depending on suggestions. > > > > In the old days I used to use abrasive powders such as pumice followed by > rottenstone. Are these now out of vogue? > > > > Now, it looks pretty darn good as a sort of satin-sheeny thing, but what > else do some of you suggest? The final appearance I am looking for is > somewhat glossier than it is now, but not necessarily high sheen. What about > paste polishing in the final step? Use of electric polishers? Etc. > > > > Thanks! > > > > *Nick Gravagne, RPT* > > *Piano Technicians Guild* > > *Member Society Manufacturing Engineers* > > *Voice Mail 928-476-4143* > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech_ptg.org/attachments/20090319/c88aa80c/attachment.html>
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