Dry Ice, where have you been all my life?
Would defo like to see a real life demo of that...looked like he took paint off one of them but would be cool if you could control that.
If you ever get the chance to see a demo, or one in action, go for it!
I did see the tail end of a demo done at a detail shop owned by a guy I know several years ago. He called and said "you gotta come see this", so I did. He wanted one because it can be used to clean everything from greasy engines & undercarriages to interior plastics, rubbers, leathers & fabrics. Unfortunately he's pretty much a one man shop, and just wasn't comfortable enough financially to pull the trigger on it, otherwise I'd have one at my disposal to "borrow"
You adjust air pressure and dry ice delivery to dial it in for what you're doing. It's not abrasive, so it's not efficient for stripping paint, but it
will remove any paint that isn't bonded well, which is something that has to be considered, especially on vehicles. Wide open, they have a lot of power, enough to remove undercoating from cars, sign vinyl, but turned down, delicate enough to clean fine leather.
Good machines aren't cheap, but if you have a demand, costs can be recouped like anything else, however there is one major expense besides the machine. You also need a hefty air compressor capable of continuous clean higher volume air delivery, like you would need for sandblasting. The sales guy used a diesel compressor in his trailer with all the dryers and coolers, I think he said you'd need at least a 15hp shop compressor to handle it. A compressor that size with all the dryers, cleaners and air coolers needed is an easy 8-10 grand minimum if you don't already have one.