Bead Blasting

Discussion in 'Gunsmithing' started by Lost creek, Mar 7, 2008.

  1. Lost creek

    Lost creek Well-Known Member

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    What kind of bead blasting do you guys do on stainless steel barrels, muzzle brakes etc.that looks like the finish on stainless steel factory guns.
     
  2. Buffalobob

    Buffalobob Writers Guild

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    Not what you asked, but I have become a fan of the aluminum oxide finish.
     

  3. specweldtom

    specweldtom Well-Known Member

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    Glass beads make a burnished finish similar to some stainless factory rifles. 70 grit aluminum oxide media is more aggresive and makes a dull, fairly smooth finish. Silica sand (sugar sand) is more aggresive when fresh and makes a dull, fairly coarse finish that gets darker in a few months. For a nice uniform finish you have to remove all machine and turning marks first.

    Hope this helps, Tom
     
  4. anachronism

    anachronism Well-Known Member

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    Most of the factory finishes I've seen seemed to use very fine glass beads, there are different sizes, and minimal air pressure. I once did a Ruger Blackhawk at high pressure with coarse beads, and it came out almost identical to Rugers Target Grey finish. I has to sand that one back down and wire brush it instead.