Import Defoamer — Buy in Bulk from Supplier in China

The USI-230A Defoamer is a silicone-based antifoaming agent formulated for industrial use in water-based and solvent-based systems. It is designed to rapidly collapse foam and prevent reformation during high-shear processes. The product is supplied as a concentrated emulsion with a density of approximately 0.98 g/cm³ and a pH range of 6.5 to 8.0, making it compatible with most industrial fluids without causing phase separation or haze.

This defoamer is typically composed of polydimethylsiloxane and silica dispersants, consistent with standard silicone defoamer formulations used in food-grade and pharmaceutical applications. It contains no volatile organic compounds and meets the non-toxicity requirements of FDA 21 CFR 175.300 for indirect food contact. The formulation is stable under shear and at temperatures up to 150°C, which aligns with typical industry benchmarks for high-temperature processing environments.

It is commonly used in food processing, wastewater treatment, paint and coating manufacturing, and oil refining where foam disrupts flow or contaminates product. Buyers include mid-to-large-scale producers in Asia and North America who require consistent foam control without residue. Packaging is available in 20kg HDPE drums or 200kg steel drums. MOQ is typically one drum, and lead time is confirmed upon order. Incoterms are FOB Nanjing or CIF as negotiated.

Nanjing Union Silicon Chemical Co., Ltd is a manufacturer and exporter of specialty silicone chemicals based in Nanjing, Jiangsu Province, China. The company operates from a commercial office in the Overseas Chinese Plaza and holds import-export registration. The listing confirms no factory address, no ISO certification claims, and no production capacity figures. Response rate and average response time are not tracked, indicating no active sales team on the platform.

The supplier is classified as imported and harbor-tier, suggesting it has been verified for export documentation compliance but not for production scale or quality systems. No history, employee count, or client list is disclosed. The product USI-230A appears to be one of several silicone defoamers in their catalog, with no indication of R&D or in-house testing facilities. All claims are limited to the product's functional description and packaging.