Corrosion on newer LT Bach slide

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Mamaposaune
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Corrosion on newer LT Bach slide

Post by Mamaposaune »


Hope this link comes through. Not my horn, I was just strolling through ads and noticed this newish Bach 16, and what looks like red-rot, or some type of corrosion, on the nickle-silver outer slide. (Pics 5+6)
What gives? Even if it was not well maintained (kept clean) it does not seem as if this should happen in just a few years.
GabrielRice
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Re: Corrosion on newer LT Bach slide

Post by GabrielRice »

You can see problems on the bell too. That's not corrosion, and it's certainly not red rot. It's a lacquer problem.
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Cotboneman
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Re: Corrosion on newer LT Bach slide

Post by Cotboneman »

I agree that does not look like red rot. What it looks like is a really poor lacquer application.
Mamaposaune
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Re: Corrosion on newer LT Bach slide

Post by Mamaposaune »

OK. I jumped to a conclusion there. Still, it doesn't seem like a new-ish trombone should have lacquer issues like that. Hope it's not common, although it should be covered by the warranty.
hornbuilder
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Re: Corrosion on newer LT Bach slide

Post by hornbuilder »

Dezincification (red rot) does not occur in nickel silver. Looks like either a contaminant on or under the lacquer.
Matthew Walker
Owner/Craftsman, M&W Custom Trombones, LLC, Jackson, Wisconsin.
Former Bass Trombonist, Opera Australia, 1991-2006
tbonesullivan
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Re: Corrosion on newer LT Bach slide

Post by tbonesullivan »

Looks like either something messed with the lacquer, or the horn was not cleaned properly before lacquer. Also depends on how it has been stored, used, etc.
David S. - daveyboy37 from TTF
Bach 39, LT36B, 42BOF & 42T, King 2103 / 3b, Kanstul 1570CR & 1588CR, Yamaha YBL-612 RII, YBL-822G & YBL-830, Sterling 1056GHS Euphonium,
Livingston Symphony Orchestra NJ - Trombone
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