HILCO Dry Resin Ionic Exchange cartridges are a highly effective solution for reducing TAN level in phosphate ester fluids as well as reducing varnish potential in both mineral and synthetic fluids.  Hilco’s Dry Resin Ionic exchange is a cost effective treatment method when used in a kidney loop arrangement that has 7 times the acid scavenging capacity of Fullers Earth and nearly 3 times the capacity of Selexsorb while adding nothing to the fluid.