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-   -   Oxidized grip cap (https://parkerguns.org/forums/showthread.php?t=37158)

Phil Yearout 08-26-2022 05:50 PM

Oxidized grip cap
 
I assume they were bakelite in the 20's? Is there a good way to get the yellow grunge off without hurting anything?

Aaron Beck 08-26-2022 06:19 PM

I always thought ballistol might be right but im interested in the experts opinion

Chuck Bishop 08-26-2022 06:24 PM

Black shoe polish

Brian Dudley 08-27-2022 08:13 AM

Steel wool will remove it, but it would be hard to get it all out of the detail and lettering. And it will soften the detail too. If it os something you cannot live with, I suggest some of the coloring methods mentioned above. Or a sharpie.

Mike Koneski 08-27-2022 09:03 AM

Ultrasonic cleaner?

Brian Dudley 08-27-2022 09:32 AM

Quote:

Originally Posted by Mike Koneski (Post 370462)
Ultrasonic cleaner?


That will likely make it worse. Or have no effect.

Phil Yearout 08-27-2022 09:45 AM

Ha! Am I the first guy to have the problem or to be concerned about it? Guess I assumed others had run into this before.

Brian Dudley 08-27-2022 11:12 AM

Quote:

Originally Posted by Phil Yearout (Post 370465)
Ha! Am I the first guy to have the problem or to be concerned about it? Guess I assumed others had run into this before.

It is pretty common. Some guns experience it, some dont. I do not know what chemically goes on that causes it. It can happen with caps and buttplates.

I once tried to put an original lefever buttplate in boiling water to soften it to help it confirm to the curved butt of a stock. Just like you would with modern urethane plastic. The plate instantly oxidized in the hot water. Which is why I did not recommend ultrasonic cleaning.

If it is in fact chemical oxidation, possibly a rust removing solution may have an effect. But I am sure it is not the same thing as rusting metal.

Dean Romig 08-27-2022 01:31 PM

Before bakelite there was gutta percha which normally lightens in hue or shade with age… some caps go almost blondish and it’s not limited strictly to the surface… it can be deep within it.






.

Mike Koneski 08-27-2022 01:59 PM

From dental work to grip caps and butt plates? Go figure.


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