Similar to sand blasting, but with baking soda. (Remember “plinking” and “plasma pinch”?)
This soda blasted pop can is still full of soda!
Blasted at 50 PSI with sodium bicarbonate, the surface has been restored to it’s original pre-painted condition. There is no pitting, etching, warpage or heat distortions.
Soda blasting is a process in which an environmentally safe product of sodium bicarbonate… is used as a specially formulated blast media to clean and strip most surfaces using a high volume but low pressure blasting machine. The soda serves as a mild abrasive that will remove or etch paint.
from CobBlaster.com
Randy Ludacer
Beach Packaging Design
another reason not to drink the stuff…
Baking soda blasting drinking soda.
Kinda like a destructive droste effect. ;-)