Posted by Paul(in NY) on Saturday, August 30, 2003 at 8:05PM :
Dupont Starblast, a media for blasting steel is susposed to have rounded particles and will not etch steel like other media. Also susposed to blast cooler, less chance of distoration, etc. Sounds like it might be better than Black Beauty. Dupont Site
http://www.titanium.dupont.com/TTPORTAL/EN/Products/Literature/MI_B_H_60159_2.pdf?GXHC_gx_session_id_=01315cb88c4ef52a