Bead blast ?

[Rockchuck]

What grit of glass beads would i need to duplicate the rem satin finish on stainless steel. Anyone had any experience on this matter.

 

[Dusty Stevens]

120+ after an 80-120 grit. I have a bucket of real wore out 120-240 that is perfect after the 80-120 smooths it out

 

[Rockchuck]

Thanks dusty

 

[Dusty Stevens]

I do know the glass beads sold at harbor freight are way too rough

 

[Rockchuck]

Yea I figured that I got some on order #9 mil spec and some #11 also

 

[eww1350]

To duplicate the Remington finish make sure you use GLASS BEADS not aluminum oxide..
Medium 120 grit will work..

 

[remdriver]

What about air pressure? What should it be

 

[Rockchuck]

I thinking about 50 p.s.i

 

[Rockchuck]

Any body have the p.s.i pressure that's works for them other then 50 p.s.i I'am all ears

 

[Link]

Anyone try soda blast? It's widely used in some industry's. My friend sold it for Churchill and White [ Arm and Hammer]

 

[msinc]

50 psi is not enough. Many blast guns are different though, you might want to start there and go up until you get a good match. The lower the pressure the longer your glass beads will last, but you still have to get the effect you want. Glass beads are "consumed in performance" and break down to a very fine dust as you use them.
Soda blast is a lot different. That is for when you have a surface that wont take more abrasive blasting, such as gel-coat {fiberglass boat hull} or polyester type material.
What I have found with glass beads and trying to duplicate the glittery type finishes is that getting that effect, the shiny, sparkly, glittery look causes the glass beads to break down kind of quick because they have to hit the metal pretty hard. You have to watch as you go, if it's a large area you will notice a different finer softer look at the end as opposed to when you first started out and your beads were "new". Hope this makes some sense.....

 

[Dusty Stevens]

I have a skat blast regulated to 45psi. Ive ran it on up before removing tool marks and didnt hurt nothing

 

[boltfluter]

In my experience 50 psi will do nothing but bounce off. You need to be up around 100 to 125 psi. Good luck.

Paul

 

[hpshooter]

I have no idea how close the satin finish on PacNor stainless barrels is to Remington's finish but PacNor shared this info with me regarding their process as of 10/13/2008.

Media: Potters Quality Ballotin Glass Oxide Impact Beads, Grade AC. Potters Industry
Canby, OR

Pressure: 120PSI

The PacNor finish is very smooth with no perceivable roughness and is a matte silver.

 

[msalm]

If too rough I’ve rubbed them out with scotch bright and kroil and it produces a nice smooth matte grey much like the old Ruger stainless heavy barrels.

 

[eddief]

I've used 000 and 0000 steel wool and kroil or wd40 to smooth them out before.

 

[Rockchuck]

When bead blasting aluminum any thing special that need to be done different then blast stainless steel

 

[Dusty Stevens]

Dont stay in one spot too long

 

[tobnpr]

80 psi with glass beads, 120 grit. Much more pressure,you're causing the beads to disintegrate.


110 to 120 psi with AlOx, 80 to 100 grit. Cerakote specs 100 grit, but after a few rifles 100 grit had broken down enough where I didn't like the etching- so I fill the cabinet with 80 grit and use common sense with the nozzle-to-work distance when it's new media.

Grab a scrap barrel,.cut it up and experiment a bit.
Often, for bare metal finish if there's slight machining marks I'll run it through the AlOx cabinet first, then bead blast.