Can anyone answer the question?
What do I need to sandblast?
*sigh* Fair enough. But one last warning that you are wasting your time, money, and jeopardizing your and everyone else around your-selfs' safety.
Your rims are rusted to the point they have holes in them.
Even IF you successfully manage to weld the leaky spot, what are you welding it to? more paper thin metal waiting to break? Welds are only as strong as the metal surrounding it.
This is not just about you saving a few pennies, or "at least I'll end up with a sandblasting rig afterwards". No, you are not just betting with your own safety you're messing with the poor person driving next to you, or in the on-comming lane. Because your rim is rusted to where it can break off if given a good enough bump.
There is no fix for this rim.
IT IS DANGEROUS.
Buy another one.
There is not a picture in the world that can de-bunk decades, trillions of dollars, and millions of very smart people, of welding and metallurgy and strength/strain testing.
So, anyways.
You'll need a blasting gun. some draw up through a hose (most common kind) and others will have a hopper. The hose one is much more convenient.
You need an air compressor. There is a thing called CFM (cubic feet per minute), a blasting gun will use alot. The rating on the compressor is a continuous rating, it'll supply enough CFM to the gun regardless. But if you want to continually sandblast you need a compressor that's rated for more CFM than the gun, or at least as much. Otherwise you'll just have to stop and wait for the compressor to charge up again.
You'll need blasting media. I've used play sand (I don't recommend, but it works), but there are lots of types. Give this page a read:
http://www.kramerindustriesonline.com/blasting-media.htm
You're also gonna need to know about silicosis, which gives you all kinds of lung problems and cancer if your not careful. Play sand can have lots of silicon in it.
Respirator. Get the highest rating possible. Full face if possible as well. Those crappy white elastic band one's ain't gonna cut it.
Heavy duty gloves. I don't recommend sand blasting your hands.
Bucket for holding the media.
A large tarp. That'll catch most of the media you use if you don't have a cabinet, dump it back into the bucket afterwards. Also helps f you stay out of the wind.
That's pretty much it, it's really simple actually. Point and shoot. Practice on some rusty pieces before doing the important work though, just to get the feel for it. It won't take long.
I got a gun and hose set from the local TSC for something like $20-$30. It's kinda crappy, but it does the job.
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