Sand Blasting Question
So I'm about to embark on sand blasting my AR parts and some pistol components for Gun-Kote. I've read a lot of users here say use 100-120 grit Aluminum Oxide around 40psi to remove the coatings, paints, and prep the surface for the new coating.
Now I'm almost ready to start but I've checked everywhere local and can not find 100-120 grit Alum. I can find 70 grit, and some other walnut medias, but no one seems to have the specific recommendation.
Where is everyone getting their aluminum oxide? Harbor frieght doesn't have it, neither do Lowe's or Home Depot, even a local tool shop doesn't stock it.
Where is the best place to find it?
Just go to Tractor Supply and buy Garnett. 80 grit alox or garnett is fine if you can't find 100-120.
Try looking under abrasives in the yellow pages.
You don't have a local Grainger? I live in shit Vermont and there is one in the city. (If Burlington qualifies as a city. )
I get mine from a local company up in the city. Canfield and Joseph in KCMO I think Lauer Custom weaponary and Brownells has small bags
Grainger, or Tractor Supply.
Just curious, why remove anodizing from the AR? Isn't it already the hardest thing you can put on aluminum? Outside a color change, what do you gain?
Thanks for all the tips! I'll see if there is a Grainger or tractor supply nearby.
As for what is to be gained by removing the anodizing; I'm not sure what coating method was used on the lower but while trying to install a new stock and trigger guard I managed to scrape up the finish down to the metal in a few spots. My upper was also shipped with a large spot on the inside that seems to have chipped off or something.
Also my pistol slide that I'm coating has seen a lot of rounds and holster wear. The FNX is notorious for not having an extremely tough slide coating.