A Google search of blasting media finds different things recommended for brass/bronze. In your experience what medium works best to clean without marring the surface?
Soda Blaster works best IMHO
I use glass beads.
Or walnut shells?
When I had Oxy-Acet torch parts rebuilt, they used glass beads. Leaves a nice smooth finish that could be polished fairly easily if needed. Dave
glass beads and start with lowest air pressure needed to remove whatever you are trying to remove. If you have a cabinet that you normally use something more abrasive in like sand or aluminum oxide be very very careful to get all of the heavy media out of there before you switch to glass beads. I have a separate cabinet that only beads are used in. It is a small bench top unit made from heavy plastic and works just fine for those "fine" jobs.
Good luck with your project.
Steve what are you trying to clean?
Having 4 brass cars I have had clean/restored some brass and have found this Loctite 82251 will remove decades of patina and leave a bright brass ready for buffing.cheers pete
The immediate project is a couple of bronze carburetors, but there will be other occasional brass/bronze items to clean.
Steve you will be amazed how this stuff works,gets into all the nooks and cranies.
I was also told, but not tried yet, to soak in vinegar.
I tried vinegar once, donít leave it in too long as it seems to eat the tin out of brass leaving a reddish copper color that needed to be buffed out.