Plasma Green 1050 is a plasma cutting table additive that prevents rust & biological growth in your water pan or sump, and is formulated to be safe for all types of steel. We recommend Plasma Green 1050 at 5% by volume or 20:1 ratio, and concentration can be easily maintained. Plasma Green 1050 is rated non-hazardous, non-toxic, and bio-safe. This product will not leave a mineralized or powdery deposit, and will not degrade consumables like other additives. Most customers will get 10-12 months protection with typical use.