Dongsen is a leading manufacturer of chemical isocyanate hardeners for 1K/2K coatings&adhesives in China since 1988. We aim to provide a full range of polyisocyanate curing agents/ crosslinkers/ PU hardener, including TDI based aromatic, HDI based aliphatic, moisture curing , waterborne and blocked isocyanates. 

Dongsen isocyanate hardeners can serve various industries: automotive, wood furniture, construction, packaging,  electronics & appliances, can & coil coatings, industrial coatings, floor coatings.

Headquartered in Guangzhou, Dongsen has two manufacturing bases located in Guangdong, China, spanning a total area of 150,000 square meters. We always strive to deepen our efforts in independent manufacturing, R&D, quality control to provide top-tier coating solutions to our customers.

For over 30 years, Dongsen has witnessed a huge leap forward and established a global presence in the coating industries. Our high-performance isocyanate hardeners has won global recognition and trust over 30+ countries.

At Dongsen, our vision is to go beyond the industry standard to provide high-performance chemical products to our customers. We are committed to technical innovation, customer satisfaction and sustainable development.

Dongsen Chemicals

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Dongsen Chemicals

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