Nanjing Union Silicon Chemical Co., Ltd. is a leading producer and exporter of organofunctional silanes, antifoams and defoamers in China. USI organofunctional silanes are a kind of multifunctional silanes which are typically used as silane coupling agents,crosslinking agents, adhesion promoter, surface modifiers, moisture scavenger, hydrophobing agents and dispersing agents in the field of fiberglass and composites, mineral and filler treatment, adhesives and sealants, plastics, polymerization and rubber, paints, inks and coatings, automobile tires, water repellents and surface protection.  Silicone defoamers are also versatile products used in a wide range of industries, such as sewage treatment, pulp & paper, paints, inks and coatings and so on. Our team has been in these business..