07-23-2015, 07:54 PM
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#4
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Senior Member
Join Date: Mar 2014
Location: Nevada
Posts: 2,446
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Originally Posted by The Tourist
I have essentially the same pistol you do, except that mine is the Gander Mountain version.
I checked mine, and it has the exact same wear marks.
Our frames are aluminum, and if I miss my guess, it is either aircraft aluminum, or surface hardened. The "black" is technically paint.
If you polish you will be altering the surface of the aluminum. If the mark bothers you, I'd first recommend that you cold blue it, checking first to make sure any touch up is compatible with the alloy Kimber uses.
I polish things for a living. When the rag or stone is black it's called "swarf." That's a combination of the paste, the carrier (water or oil) and the metal itself. Yes, you can make it shiny, but at the expense of removing irreplaceable metal.
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Can aluminum be blued? Or must it be anodized?
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Richard
NRA Life Member - 1982
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