Lab Oil 100 is a rust preventative that provides four critical performance characteristics. It is dry to the touch over phosphate coating, is low in toxicity, has excellent emulsification and provides high corrosion resistance. Applied over zinc phosphated steel panels, it withstands over 240 hours of salt spray per ASTM B-117. Maximum corrosion resistance is achieved when concentration is maintained at 20-30% by volume. It offers tolerance to alkaline or acid contamination as encountered in black oxide or phosphating cycles. It is supplied as a concentrate and is diluted in warm (140°F) water. Recommended operating temperature is 140 to 180°F; concentration is 5-30% depending on the application and corrosion protection required.