PEL-HIB CC220 corrosion inhibitor is an amine borate ester suitable for use with aluminum and steel substrates. Originally introduced as an alternative to nitrites, it affords the same level of protection to ferrous materials. It provides excellent rust inhibition and aids lubrication. PEL-HIB CC220 is very water soluble. In addition to its applications in metalworking fluids and coolants, cooling water and boiler operations, oil well and refinery operations, fuels, lubricants and greases, PEL-HIB CC220 also find its uses in inorganic coatings, organic coatings, and printing inks.