Corrosion on newer LT Bach slide

Post Reply
Mamaposaune
Posts: 423
Joined: Sat Sep 22, 2018 12:48 pm
Location: Central Jersey

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
Posts: 979
Joined: Fri Mar 23, 2018 7:20 am
Location: Boston, MA, USA
Contact:

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.
User avatar
Cotboneman
Posts: 199
Joined: Fri Jul 27, 2018 4:16 pm
Location: Tucson, AZ
Contact:

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
Posts: 423
Joined: Sat Sep 22, 2018 12:48 pm
Location: Central Jersey

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
Posts: 854
Joined: Wed May 02, 2018 9:20 pm

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
Posts: 1462
Joined: Tue Jul 02, 2019 9:06 am
Location: New Jersey
Contact:

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, B&H Eb Tuba, Sterling 1056GHS Euphonium,
Livingston Symphony Orchestra NJ - Trombone
Post Reply

Return to “Maintenance”