Tell us about yourself!
I been a sandblaster for 26 years you need a air supply to breathe to be safe but for small projects once in while it's fairly safe know someone that used a beekeeper helmet for a year or more didn't hurt him just to be cheap and safe use a respirator with correct filter
Do they make a 9v solenoid nice project battery takes to much space
NO DO NOT USE CAUSTIC SODA that will eat the aluminium cans I left some aluminium in a caustic soda tank and almost nothing was left
That's not a sandblaster that is a bead blaster cabnet