tri7/5 -> RE: Two DeVoes at Mundo Flamenco (May 22 2015 12:54:45)
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John, curious why you would entertain poly as a finish on an acoustic instrument? I've always felt, and many players agree in the electric realm, that poly is the most dampening finish out there. Since acoustic volume and reponse isn't the most important thing in the electric realm its kind of a moot point. However you can immediately feel the acoustic vibration difference and sound in an electric guitar finished in poly vs. thin nitro or satin etc. quote:
ORIGINAL: jshelton5040 quote:
ORIGINAL: SephardRick The most common were nitrocellulose lacquer sprayed over alcohol, turpentine, linseed, and paraffin based primer coats. We were told by the manufacture (Parks) any quick dry finish over a slow curing material would cause alligatoring or checking. Fisheyes in the finish from high humidity was another problem. There's little doubt that using any finish involves a learning curve. Just ask anyone who's tried French polish for the first time. If you're going to spray lacquer or any other finish you absolutely must attend to water and oil in the lines, not to mention temperature, humidity, air flow, ventilation, etc. Otherwise you'll have constant problems with fish eye, pock marks, blushing, etc. I will never listen to advice from a manufacturer after my latest fiasco with cold checking. If I weren't so old I'd consider switching to polyester since I think it's the best finish available for the small shop builder.
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