Ion Exchange (IX) is an incredibly versatile technology often utilized in industrial water treatment and selective separation. While all resins generally function on the same basic principles, there is a seemingly endless variety of IX resins available on the market today. Once you understand the basic resin types and their functions, it might be easier to narrow down the right types for your industrial facility and see how they can potentially help to improve your process.


IX resins are materials that facilitate IX reactions. They are composed of polymer matrices to which ionic “functional groups” of either positively-charged ions (cations) or negatively-charged ions (anions) are permanently bound. Some specialty resins have both types of functionality.  These functional groups have a net negative or positive charge that allows them to readily attract counter ions, or ions of an opposing charge. As a liquid stream flows through the IX resin, the counter ions can be replaced by ions of a similar charge.


  • Water Treatment
  • Food & Beverage
  • Pharmaceutical & Bio Industry
  • Chemical Processing
  • Electronics Industry
  • Metal Industry
  • Energy
  • Household / Sanitary

Broadly speaking, resins are named for the type of ions they exchange, meaning that cationic resins exchange positively charged ions, while anionic resins exchange negatively charged ions and include:


Strong Acid Cation Resins

Weak Acid Cation Resins

Strong Base Anion Resins

Weak Base Anion Resins


PT. Hydromart Utama Indonesia has more than 15 years experience in identifying appropriate IX resin technologies to help lower costs and waste volumes while increasing product quality. For more information or to get in touch, contact us here to set up a consultation with an engineer or request a quote.

We can walk you through the steps for developing the proper solution and realistic cost for your IX treatment system needs.