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Nanjing Union Silicon Chemical Co., Ltd. (USI Chemical) – Trusted global supplier of high-performance silane coupling agents, silicone fluids, crosslinkers, and organotin catalysts since 2009.
Nanjing Union Silicon Chemical Co., Ltd. (USI Chemical), established in July 2009, is a professional manufacturer specializing in silane coupling agents and silicone fine chemicals. We are committed to the research and development of organic silicon new materials to deliver the highest quality products and services globally.
With our own manufacturing facility and advanced equipment, we ensure consistent quality and competitive pricing. Our mission is to achieve higher customer satisfaction and sustainable business development through innovation and excellence.
Years of Excellence
Products Offered
High-performance silane coupling agents, silicone fluids, crosslinkers, and organotin catalysts for diverse industrial applications.
Cyclic siloxane used in silicone polymer synthesis and as an intermediate in chemical manufacturing.
Organotin compound used as a catalyst in polyurethane and silicone curing systems.
Highly reactive organotin reagent used in organic synthesis and catalyst preparation.
Chloro-functional silane used in surface modification and coupling applications.
Versatile silane coupling agent for enhancing adhesion in composites and coatings.
Low-viscosity silicone fluid used in defoamers, release agents, and personal care products.
General-purpose silicone oil used in lubricants, cosmetics, and industrial formulations.
High-temperature stable siloxane used in specialty polymers and heat-resistant materials.
Reactive vinyl silane for crosslinking in silicone rubber and adhesive systems.
Phenyl-functional silane for improved thermal stability and UV resistance in coatings.
Highly functional siloxane for advanced silicone elastomers and resins.
Volatile cyclic siloxane used in cosmetics, defoamers, and as a solvent substitute.
Rigorous quality control ensures consistent performance across all batches.
Dedicated team focused on innovation and custom solutions for your needs.
Direct manufacturing enables cost-effective solutions without compromise.
Serving customers in over 30 countries with responsive technical service.
Silane coupling agents improve adhesion between organic polymers and inorganic materials such as glass, metals, and minerals. They are widely used in composites, coatings, adhesives, and sealants.
Yes, we have an experienced R&D team capable of developing custom silane and silicone solutions tailored to specific customer requirements.
Typical lead time is 2–3 weeks depending on product and quantity. We provide expedited shipping options upon request.
Yes, our technical team offers formulation advice, application support, and troubleshooting assistance to ensure optimal product performance.
For inquiries, pricing, or technical support, visit our official website to contact the USI Chemical team directly.
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