cleaning brass

[Greg Newell]

Very cool confirmation, thanks! I wish I had paid attention to your post 
those many years ago. I would have had it a bit easier all this time.

Greg Newell


At 10:31 PM 4/20/2005, you wrote:
>Hi Greg -
>
>I believe the long-ago post regarding cleaning brass with a chromic acid 
>solution may have been mine.  Paul has it right in his post.  I have been 
>using it for years, and it really works great.  Inexpensive, too.  It was 
>so long ago I bought the chromic acid I will have to check for who the 
>supplier was.  The same gallon tub of the solution has served me for app. 
>10 years.
>
>First you must remove the finish from the brass, either with stripper or 
>soaking in lacquer thinner or acetone.  Then 10-20 seconds in the chromic 
>acid and the brass is incredibly brite and clean.  Longer than 30 seconds 
>and the brass will be smaller - DAMHIK!!!  I do a double rinse to ensure 
>there is no remaining acid that may continue to act on the brass, the 
>second rinse being a mild TSP bath.  A very short buff is all that is required.
>
>Obviously, chromic acid is like any other strong chemical - take all 
>health precautions.
>
>Mark Potter
>
>Greg Newell <gnewell@ameritech.net> wrote:
>Paul,
>I attempted the search and came up with nothing. Would you mind
>scanning it for us? Or perhaps finding the original post? This could be
>very timely for me! Thanks in advance!!!
>Greg Newell
>
>
>
>At 04:35 PM 4/20/2005, you wrote:
> >If you search the archives, you can find a post that has a recipe for brass
> >cleaning solution. I can't recall the author just now, but I have it
> >printed out at work. The subject of the post is something like this:
> >fabulous brass tarnish remover. It consists of warm water, chromic acid
> >and an alkaline buffer (can't remember exactly). Brain fag... Anyway, 10
> >seconds in this soup, and your corrosion is history. And, you won't burn
> >your hands in the stuff (wear gloves anyway! It will stain anything a
> >yellow color). If you leave things in it long enough, they'll disappear.
> >You won't know how you did without it.
> > Paul McCloud
> > San Diego
> >
> >
> > > [Original Message]
> > > From: Bob Johnson
> > > To:
> > > Date: 04/20/2005 12:59:02 PM
> > > Subject: cleaning brass
> > >
> > > Several months ago there was an article in the journal concerning
> > > cleaning brass. A container to put the brass into and the liquid to use
> > > for cleaning the brass. I need either the date of the journal or the
> > > liquid that was suggested in the article.
> > >
> > > Thanks,
> > >
> > > Bob Johnson
> > >
> > > _______________________________________________
> > > pianotech list info: https://www.moypiano.com/resources/#archives
> >
> >
> >
> >_______________________________________________
> >pianotech list info: https://www.moypiano.com/resources/#archives
>
>Greg Newell
>Greg's piano Forté
>mailto:gnewell@ameritech.net
>
>
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives

Greg Newell
Greg's piano Forté
mailto:gnewell@ameritech.net