Product Short Description: Antiscalant for Boiler Water Units , specially designed to control the development of scale in water plants. Product Description: Antiscalant for Boiler is specially designed to control the development of scale in Boiler Water plants. It is based on a synergistic blend of Polymer and phosphonates which are found to be more effective than other polymers at controlling carbonate and sulphate scale formation in water distillation units .