The lacquer on your Lawson is a soft cellulose lacquer that Walter used because it wore away smoothly, without creating deep pits in the metal. He expected the owners of his horns to have them relacquered on a regular basis. The lacquer on the Conn is a baked-on acrylic finish that is much harder and more durable but which, when it starts to wear, causes deep pits to form. Use a handguard and/or small pieces of electrical tape at wear points to protect your instrument.
Bob Osmun www.osmun.com David McClellan wrote: > i recently had the screwbell ring on my ambronze lawson rotated because the > area of right hand placement in the bell has become quite pitted. while i > know that some people's personal chemistry can cause this, my lawson is only > 7 yrs. old, and i also have owned a yellow brass (fixed bell) conn 28d for 34 > yrs., with no pitting whatsoever. i have researched the alloys involved. the > lawson, as i recall, is 84% copper, 14% zinc, and 2% tin. the conn is 70% > copper and 30% zinc. could it be the tin that is leeching out? are there any > other lawson owners out there who have experienced this problem? > > david > [email protected] > _______________________________________________ > post: [email protected] > unsubscribe or set options at > https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/rosmun%40osmun.com > > > _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
