I also have been considering soda blasting.Was actually just about to post aboutthe very same subject when I saw this thread. As stated a pressurized soda blaster will require a lot of air. This is dependant more on the size of the nozzle in the blaster. A 3/16 nozzle is about as small as you can go,but will still require 8 cfm at least. Portable soda blasters are really the same as sand blasters. Using a large pressurized blaster tank will help as the big tank will also act as an air reservoir and you should be able to get more blasting done before having to wait for the compressor to catch up. Soda wont hurt glass or chrome,is environmentally friendly and wont give you lung silicosis. Clean up is a pain.dont leave any in your car in any seam.It will suck up moisture.
Crushed glass is faster,cheaper and wont cause silicosis either,but still a pain to clean up. Whatever you blast with,theres a huge cleaning job.
