Make sure you get all the grease and crud off before blasting if you are reuseing the blast media.If you sre it pays to rescreen it too when going back in the cylinder.I know, I spent probably a month straight over time blasting every single piece of that 52 Molines I did last year.I had made a big booth though for it, and I know some people just blast outside in open air and don't worry about media recovery. Good Luck !!!