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Posted: 5/28/2003 6:49:41 PM EDT
Well, sorta. I parked a 1911 slide using standard manganese phosphate parkerizing solution and got the standard dark grey.

The I mixed up a homemade blueing solution by modifying the ammonium nitrate-lye formula to use potassium nitrate instead of ammonium nitrate. I brought it up to about 290 F and cooked it for 1/2 hour. That did the trick... it gave the deep black I have been after for a 80% 1911 build with a parkerized finish.
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