Most oil-based finishes - polyurethanes, epoxies, enamels, etc. and water-based finishes require sanding between coats to provide a bond between finish coats. Nitrocellulose laquer (most common type used for decades) has a unique property of 100% burn-in. Each subsequent coat will melt into, or partially dissolve, the previous coat, thus providing a great coat-to-coat bond, and eliminating the need to sand between coats for adhesion purposes. This feature can perhaps save about 4,000 hours (maybe more for me) of sanding on a multi-coat piano refinishing! Terry Farrell Piano Tuning & Service Tampa, Florida mfarrel2@tampabay.rr.com ----- Original Message ----- From: "Clyde Hollinger" <cedel@supernet.com> To: <pianotech@ptg.org> Sent: Monday, November 20, 2000 6:30 AM Subject: Re: Piano Finishes > Friends, > > I am not into case refinishing, and I would like to know. What is meant by > burn-in? > > Regards, > Clyde Hollinger, RPT > Lititz, PA, USA > > > > And the 100% burn-in quality > > is a real plus, and is not time sensitive. In other words, you do not > > have to recoat within a certain window to keep the burn-in effective. > > >
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