Preserving raw brass

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Kingfan
Posts: 1371
Joined: Apr 11, 2018

by Kingfan »

My TR180 had red oxidation on the parts of the surface of the bell and tubing. I carefully cleaned it off. I'm happy to say it wasn't full blown red rot, it was just on the surface only. It still isn't a pretty horn, just less ugly... OK, now what? Car wax, spray furniture polish, a spray can of clear lacquer, Sherwin-Williams exterior latex? Just kidding on the last one!
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hyperbolica
Posts: 3990
Joined: Mar 23, 2018

by hyperbolica » (edited 2019-11-29 11:40 p.m.)

I have several horns in total or partial raw brass. Get grips or guards or wraps for the areas your skin (or white shirt collars) touches.
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Burgerbob
Posts: 6327
Joined: Apr 23, 2018

by Burgerbob »

Just let it be, polish when you want.
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paulyg
Posts: 689
Joined: May 17, 2018

by paulyg »

Patina is good, it will passivate the surface and make it resistant to further corrosion- red rot and the like.

Water spots are not quite as good- these can lead to rot on thin metal.

Oil should not cause much of an issue, but it will cause the brass to patina at a different rate (faster). If you have acidic skin, it may do more damage.

Raw brass horns become low-maintenance around 10-20 years after they've been polished. Until that point, just be sure to wipe off all water drops and oil left behind after playing. I spray mine with Pledge furniture polish to help protect it.
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Kingfan
Posts: 1371
Joined: Apr 11, 2018

by Kingfan »

I used Barkeeper's Friend to get the worst of the corrosion off. What should I use to finish the cleaning job and polish the brass?
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Kbiggs
Posts: 1768
Joined: Mar 24, 2018

by Kbiggs »

Wright’s Brass Polish, the paste variety. It’s minimally abrasive.
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mrdeacon
Posts: 1225
Joined: May 08, 2018

by mrdeacon »

If you're worried about acid hands eating your horn all you have to do it's wipe it down after playing. Your horn will still patina but it won't get super nasty like it normally would.
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Kingfan
Posts: 1371
Joined: Apr 11, 2018

by Kingfan »

[quote="Kbiggs"]Wright’s Brass Polish, the paste variety. It’s minimally abrasive.[/quote]

Thanks. Found some in the kitchen. I know what I'm doing tomorrow now!
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Backbone
Posts: 150
Joined: Apr 08, 2018

by Backbone »

[quote="Kingfan"]<QUOTE author="Kbiggs" post_id="98918" time="1574989979" user_id="172">
Wright’s Brass Polish, the paste variety. It’s minimally abrasive.[/quote]

Thanks. Found some in the kitchen. I know what I'm doing tomorrow now!
</QUOTE>

Pics?
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Kingfan
Posts: 1371
Joined: Apr 11, 2018

by Kingfan »

[quote="Backbone"]<QUOTE author="Kingfan" post_id="98996" time="1575087669" user_id="3053">

Thanks. Found some in the kitchen. I know what I'm doing tomorrow now![/quote]

Pics?
</QUOTE>

Never figured out how to post pics on this forum. Sorry!
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JeffDeault
Posts: 7
Joined: Dec 27, 2019

by JeffDeault »

Something else that can help is having a VCI diffuser in your horn case. Like Zerust VC2 or similar. They're common in electrical cabinets and firearm storages. What they do is releasing a gas that reacts with humidity and inhibit oxidation. Drop one in your case and replace it every one or two years.

Won't protect your horn when you play with, but will help keeping it from oxidation when stored in the case.
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ZulBone
Posts: 9
Joined: Oct 29, 2019

by ZulBone »

[quote="paulyg"]Patina is good, it will passivate the surface and make it resistant to further corrosion- red rot and the like.

Water spots are not quite as good- these can lead to rot on thin metal.

Oil should not cause much of an issue, but it will cause the brass to patina at a different rate (faster). If you have acidic skin, it may do more damage.

Raw brass horns become low-maintenance around 10-20 years after they've been polished. Until that point, just be sure to wipe off all water drops and oil left behind after playing. I spray mine with Pledge furniture polish to help protect it.[/quote]

Does that mean water spots should be polished off? Or should they be left alone?
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harrisonreed
Posts: 6479
Joined: Aug 17, 2018

by harrisonreed »

I heard of people using turtle wax or car wax to cover newly polished raw brass. Is that OK to do? I'm still trying to figure out how to clean up the neck pipe on my 88H and maybe that's the way
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BGuttman
Posts: 7368
Joined: Mar 22, 2018

by BGuttman »

Car wax or Butcher's wax will help. None is a permanent solution. Lacquer is much better.

Wax will preserve the brass finish for a few months, after which you will have to wax it again (probably after another polish).

Back in the Bad Old Days there was a treatment for brass that kept it looking the same forever. Problem is, it contains some really hazardous metals.
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btone
Posts: 125
Joined: Mar 23, 2018

by btone »

I have a number of horns with raw brass bells. +1 for Wright's brass polish (occasionally) and Pledge (every few weeks) and making to be sure to remove fingerprints (daily) and water spots routinely. I also recommend routinely using a chamois when wiping down the bell, a lacquered horn, or a mouthpiece (especially the rim) so as to avoid dust scratches.
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vetsurginc
Posts: 166
Joined: Jun 29, 2019

by vetsurginc »

Renaissance micro-crystalline wax polish works nicely as well (museums use for armor, swords, and other metals). Does not produce a high shine. But good protection.
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ssking2b
Posts: 487
Joined: Sep 29, 2018

by ssking2b »

I have found that a good non-abrasive car polish works well - like NU Finish, Simonize Non-Abrasive Car Polish, or a non-toxic cleaner polish like FLITZ. All need to be re-done after a few months, but they work great and add no weight or yucchhk to the horn. They don't change the playing characteristics. I have been using that sort of stuff on my horns for over 30 years.