Good advise Thomas. Thanks. No blaster bag for me. I'll stick with your original suggestion.tom_k/mo wrote:Mike, sorry I overlooked that. 80 grit would definitely cut the paint. 80 grit is used quite often on granite/marble for engraving grave markers. If you hit the way tubes too long you would probably find some fine pitting on them, but if you just hit it long enough to remove the rust you should be fine. 80 grit shouldn't hurt the castings at all, although (no matter WHAT grit you use) I wouldn't use it on the bearing/bushing surfaces.
The blaster bag would be a waste of time (IMHO). That is a SPOT blaster. The rubber tip is pressed up to the surface of the object being blasted, and the material is sucked out of the bag, hits the surface and falls back in the bag. It's really meant to remove spot rust from an auto body without removing a lot of surrounding finish. It would take FOREVER to do paint removal on a headstock with something like that.
I only plan on using this system for paint removal on both the steel and aluminum castings AND removing the aluminum oxidation for the unpainted aluminum parts. I've perfected rust removal with wire wheels and electrolysis. Tubes would go into the electrolysis bath for sure. Electrolysis is easier.....hook 'em up, set it, and forget it!! (til morning anyway).
I appreciate your help.
