RE: Blast Media

["WILLIAM B LAWRENCE" <ynotink@msn.com>]

Blasting mechanical parts can be a bad idea because it's difficult to get 
all of the media out of the hidden nooks and crannies. A little sand will 
ruin your new rebuild in a heartbeat.

That said I recall from my oilfield experience that media blasting on 
process piping is done with glass beads. I guess they are less abrasive and 
tended to flush through compressor valves and cylinders without causing any 
damage. I still don't think I'd trust them in an oil gallery.

Bill Lawrence