I have some rust on my driveway and some old rusty tools I got from my grandfather years ago.
I have been looking at sand and soda blasters for about 6 months. They are either inexpensive and cheap or very well made and expensive!
So I decided lets just make one.
Step 1: Get Crap
Go get some crap at Harbor Freight. This air gun kit ran $4.99.
Now find a bottle in the trash.
Step 2: Say "Hi" to the Cat
This optional but important step may be the difference between you succeeding or failing.
Step 3: Cut the Neck
Remove the locking neck for the cap.
Step 4: Drill
Grab a 3/16" bit and drill the neck just under the cap.
Step 5: Test Fit
Push the air rod in. It should be very snug!
Step 6: Mark
Mark the bottom of the air tube. Spin the tube around so you can hold the handle while you file.
Step 7: File
File a hole through the tube to let your media in. When you're done spin the tube back so the opening is at the bottom.
Step 8: Fit
Get the tube back into the hole.
Step 9: Seal
Not looking for the glue to actually stick here.
Just looking to prevent the hole from opening up too much while under pressure.
Step 10: Test Blast
Put your Saftey goggles and gloves on and give it a good blast. I shot at the rust on the drive way and removed a spot (the white part) in just a few seconds.
I will give you an update on the driveway once I have time to do some actual blasting on it.
Step 11: Real Deal
An old set of needle nose (rusty as hell...)
Step 12: Blast Away
Clean as a whistle!
Step 13: Extra Step
Because everyone keeps asking this is my air compressor a California Air Tools 10020c running at about 40 PSI for blasting.
I also use 20/40 crushed walnut for my media.
For PPE I use gloves, a P-100 respirator, long sleeves and a face shield. No excuses! Do not mess with your Safety!