Troy 1161 Liquid Alkaline Pre-Clean is a concentrated blend of alkaline builders, water conditioners, water soluble solvents and low foaming wetting agents designed for use in soak or recirculating spray wash applications. Troy 1161 Liquid Alkaline Pre-Clean oi low foaming and safe on ferrous and nonferrous metals. Troy 1161 Liquid Alkaline Pre-Clean can be used as a PRE-CLEAN for parts prior to phosphatizing or painting. Parts cleaned with Troy 1161 Liquid Alkaline Pre-Clean should be rinsed with fresh water prior to phasphitizing or painting