[304065]

Dennis, it's odd, but I was just thinking this the other evening, even to the point of looking for a local contractor who could do it.

This process was heavily researched by Boeing a few years back as an alternative to chemical strippers or other abrasive. Then again, with all the controversy over carbon emissions I wouldn't think it would be too popular.

But you asked, "does it work" and the sites I checked suggest it does. I do believe, however, that it is pretty expensive.

The media sublimates directly leaving no residue, only what has been dislodged by the blasting process. I wouldn't trust the oil galleys, would definitely have them unplugged, cleaned and plugged again, due to the likelihood that a chip of dry ice would dislodge sludge or something inside which would then stroke the engine later. And if you're sending the case out for a galley clean, why not have the shop clean it?

So you see it's an ongoing quandary. I also considered Soda blasting, a dip in vinegar would turn the bicarb into gas. . . I think. TimT? (Tim used to work in the soda blasting biz as did I approximately 100 years ago)