You definitely have to use dry air. You at a minimum need a moisture separator in your compressor discharge. A refrigerated dryer would be even better.

I have a small sandblast gun I got from Grizzly Industrial, and it works fairly well. It's a small job unit though. It recommends a compressor that will put out 11 cfm.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.