Typically used for any standard water softening application. PureT USA is a Gel Type Strongly Acidic Cation Exchange Resin of the sulphonated polystyrene type. This resin is especially designed for use in food applications. It can be used for softening (in Na+ form) as well as for water demineralization and other chemical processes (in H+ form). Its principal characteristics are excellent physical, chemical and thermal stability, good ion exchange kinetics and high exchange capacity.