TEGO AIREX 901 W is a polyether siloxane copolymer that contains fumed silica. TEGO AIREX 901 W is an excellent defoamer and deaerator that provides effective micro-foam control in airless and air-mix spraying applications. It is suitable for use in waterborne and solventborne formulations. TEGO AIREX 901 W offers benefits like improved flow and leveling, elimination of surface imperfections and reduced pinholes. These properties make TEGO AIREX 901 W ideal for producing high quality coatings with a smooth finish. TEGO AIREX 901 W can be used across various industries that require coating applications like construction materials to ensure uniform coating thickness and defect-free surfaces.