[pianotech] FW: re: Blackening rusty tunning pins

[Joseph Garrett]

Well, I'll try this again.<G>

Joe Garrett, R.P.T.
Captain of the Tool Police
Squares R I


> [Original Message]
> From: Joseph Garrett <joegarrett at earthlink.net>
> To: <pianotech-request at ptg.org>
> Date: 1/31/2012 2:33:33 PM
> Subject: re: Blackening rusty tunning pins
>
> Doug Gregg said: "Here is a tip that I submitted to TT&T but has not yet
made it in. I
> thought I would share it here as there are many shop guys on this
> list.
>  
> Living on the tip of Long Island within a mile of salt water in nearly
> every direction, I see a lot of rust. Rusty tuning pins look ugly and
> polishing them is very time consuming with the rubber thingys.
> Besides, they will just rust again. Here is a solution. Don't touch
> the rust. Spray it with Klean-Strip or Permatex brand rust restorer.
> It goes on clear and will not discolor the plate. It only turns rust
> to a semi-matt black. It prevents further rust and looks very
> presentable. It is not quite bluing but...
>  
> Caution, don't use other brands as they contain some black pigment
> that will discolor the plate. These go on clear.
> The pins have to be free major dirt and any oil or wax, but that is all.
>  
> The photo shows the before and after, side by side on this old Cable
upright."
>  
> Doug,
> What is the ingredients of this stuff? In other words, are there any
chemicals that might contaminate the pin block, or possibly "creep" into
places where it shouldn't? The pictures don't really show the strings in
relationship of the "rust", which to me looks like deteriorated bluing,
rather than rust itself. I don't see any rust on the strings to begin with
and ditto with the strings after. Or, put another way, does this stuff turn
the strings black too? The picture(s) don't seem to show that. BTW, bluing
is simply a form of controlled rust, fyi. <G>
> Thanks,
> Joe 
>
> Joe Garrett, R.P.T.
> Captain of the Tool Police
> Squares R I