Sandblasting what media do i use on mags?

[99si/mass]

What sandblasting media should I use on USGI. They say no to glass as it polishes and makes it hard for new coating to stick.
any 1 got any suggestions new to blasting sand that is.

 

[mdh]

Depends a bit on the final finish you're planning on applying, but I've used 000 fine sifted silica which is cheap, and works (but use a respirator) and 120 grit aluminum oxide. The sand creates more "tooth" so you need to go a little easy on the pressure. The Al-Ox produces a finer texture, but is harder to find and much more expensive.

I use a moly based bake on resin finish and they come out feeling similar to the surface of a pmag. Not mirror smooth like the original USGI... there's a slight texture but they still slip in and out of the magwell very nicely. They also take plenty of abuse and still look new.

 

[gene]

Where would you get that stuff?

 

[mdh]

Where would you get that stuff?

I get sand from Taylor rental. 100# bag is $10. Tractor Supply occasionally has the al-ox. They also have 80 grit garnet that works pretty well.

 

[Wildweasel]

harbor freight carries al oxide. thats what I use to blast before parkerizing. (I get it at the local west springfield store)

 

[Moderator]

harbor freight carries al oxide. thats what I use to blast before parkerizing. (I get it at the local west springfield store)

Glenn do you do your own parking?

 

[mdh]

harbor freight carries al oxide. thats what I use to blast before parkerizing. (I get it at the local west springfield store)

Great to know! TSC has been really hit or miss with having it in stock...

 

[Chris]

Glenn do you do your own parking?

Oh man... The comments I could make. The jokes.


None fair to Mrs WildWeasel.