hello jhon sandblast interesting asking what capacity does the compressor you use and what pressure does what you did that abrasive you use thanks I hope your prompt response :)
Hey there, I don't know about that. I use aluminum oxide, 120 grit. You may want to use 200 grit if all you are doing is tiny text. Or a little larger grit, say 100 or 90 if you are shooting granite. I hope this helps. Good luck. Thanks for writing, John
