[Jcar]

I'll throw in my 2 cents for Plasma Quench. I've been using it for almost a year now, and don't have any problems with rust or odor. Great product. According to the MSDS sheet http://http://www2.hazard.com/msds/f2/bqr/bqrcv.html , Plasma Quench's major component is Sodium Nitrate.