Mixed Bed Resin for Pure Water Cleaning Industry Mixed bed resin is made by mixing strong acidic cation exchange resin and strong alkaline anion exchange resin in a certain proportion. These resins can remove ions from water, thereby producing pure water close to theory. Mixed bed ion exchange resin is composed of strong acid cation exchange resin and strong alkali anion mixed in a certain proportion. The ion exchange resin has good chemical and physical stability and can work in a wide range of temperatures and pH values. Mixed bed ion exchange resin is mainly used in the electronics industry for products that require extremely high water sources for semiconductors and flat panel lamps in the new era, and can also be used for pure water preparation in pharmaceutical processes.