Re: Is there such a thing as a gentle sandblaster?
For a very small sandblaster the folks at Paasche make an airbrush which is quite effective at cleaning small things. At my office I use it with 60 micron AlOx to prep crowns for cementing and also to prep the surfaces of plastic prostheses for repairs. It leaves a frosted surface even on hard materials. I wrecked a Ducati carb about 30 years ago that way. I _think_ that they make large diameter nozzles and fine walnut media for it, but don't quote me on that
Brute force and ignorance, all in one bulky and unappealing package