Acidic bath ? hydrochloride ? - How about the environment protection, Howard ?
Micro fibre towel at hand during practise, rehearsal concert always, to clean finger prints away, prevents outside cleaning. ############################################################## Am 17.11.2010 um 20:29 schrieb Howard Sanner: > I investigated this topic quite a bit recently. I have an Elkhart 8D > with very thin metal in the bell tail. > > I assumed (bad idea!) that ultrasonic cleaning would be easier on this > horn, since there would be no acid to eat away the metal. So I found a > reasonably local shop with an ultrasonic tank and called them. They > told me that ultrasonic cleaning often resulted in holes where the > thin metal was. So I didn't take the horn to them, and certainly > appreciate their candor. > > I later discussed this with Aaron Beck. He confirmed what they told > me, and added that he thought acid was the way to go on a horn with > thin metal. He also said that there are various kinds of acid that can > be used to clean a horn. He said he uses something that has a strength > similar to vinegar. He said some others use chromic acid. Walter > Lawson told me he used hydrochloric acid. > > Walter Lawson cleaned one of my 8D's with acid many times, with no ill > effect. Obviously, he knew what he was doing. Aaron, whose work is > unutterably superb, is doing likewise with the 8D with the thin bell > tail. > > The bottom line, as I understand it, amounts to this: > > 1. Ultrasonic cleaning is not necessarily easier on the horn or less > likely to damage it than acid cleaning > > and > > 2. Acid cleaning, properly done, isn't something to avoid owing to > concerns about the acid's effect on the metal. > > Usual disclaimers, YMMV, etc., etc. > > Howard Sanner > [email protected] > > > _______________________________________________ > post: [email protected] > unsubscribe or set options at > https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/hpizka%40me.com _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
