Membranes are the heart of the Reverse osmosis system, which remove the dissolved impurities from water. Maintaining a clean membrane in any desalination system is a critical factor for all the process designers. Membrane fouling will reduce the membrane quality, reduce the system recovery, poor permeate which leads to a high operating cost. Hydrosol Specialty Chemicals has developed a variety of proprietary formulated products to protect RO membranes, membrane cleaning & posttreatment.