Homemade Soda Blaster

You can get Baking soda at the farm/feed store they give it to their cattle to ease the gas in their stomach and they can eat more. I if I remember a 40kg bag is around $15 that's what I used. I built a soda blaster that would hold a bag of soda and did my whole car.It will only remove the painted areas it won't touch rust.When I did my inner fenders where they were spot welded on near the firewall looked like it would have at the factory before paint! The blue metal from the welding was still there but all the paint was gone pretty cool!