Surfynol DF-58 Silicone based Air Products Defoamer / Antifoaming agent >> Silicone Coatings >> Waterborne Surfynol DF-58 is a silicone-based foam control agent useful in aqueous systems. The product has strong foam control and deairation performance; in addition, the product has been modified to prevent surface defects caused by many conventional defoamers. Surfynol DF-58 is a 100% active silicone product and is a liquid. Emulsifiable in water. Silicone-based foam control agent useful in aqueous systems. Strong foam control and deairation performance; in addition, modified to prevent surface defects caused by many conventional defoamers.