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Old October 3, 2010, 06:49 PM   #3
Dfariswheel
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Join Date: May 4, 2001
Posts: 7,477
Bead blasting does help conceal pitting. It's still there, you just don't notice it as much as on a shiny surface.
In color a bead blasted finish is a dull black. Look at the top of most blued revolvers or automatics where the metal was bead blasted to eliminate glare and that's what it'll look like.
Depending on the blasting media used and the air pressure, the finish will range from a smooth dull black to a fairly rough dull black.

There is no material you can fill pits with that will take any chemical finish.
Epoxies and other fillers don't color at all. If you use these, they will remain whatever color the material is. If you dye the material blue/black it may hide better, but it won't match the bluing.

You can dye epoxy with very small amounts of model airplane solvent-based paint.
As example, mix some dark blue with gloss black model paint and add just a very tiny amount with some epoxy and mix it.
The more paint you add the weaker and more crumbly the epoxy is.
This is how you make colored front sight inserts.
By experimenting with the paint mix, you can get reasonably close to the color of the bluing, but it'll never be an exact match.

The only way to "remove" pits is to either polish the metal down until you bottom out on the pits or you can have a really expert gunsmith/welder Tig weld the pits.
This will fill the pits, but there's usually problems with getting the welded material to match a chemical finish. You can usually see the welds as slightly off-color blotches under the finish.
Also the welder has to understand guns, not just welding. Get a part too hot and you can wind up with a dangerous gun.

Last edited by Dfariswheel; October 3, 2010 at 06:55 PM.
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