Industrial Grade Maleic Anhydride

Xiamen Ditai Chemicals Co., Ltd. is one of the most reliable manufacturers and suppliers of industrial grade maleic anhydride in China. Welcome to buy high quality chemical products at competitive price from our factory.

Industrial grade maleic anhydride is supplied mainly for large-scale chemical production such as unsaturated polyester resins, alkyd resins and polymer modifiers, where stable reaction behavior is required rather than laboratory precision. It is typically delivered in solid briquette or crystalline form and handled in bulk by melting before use in esterification or modification processes.

One of the key parameters is its purity, which is normally controlled at not less than 99.5%. For industrial grade maleic anhydride, this level of assay helps maintain consistent esterification rates and reduces the formation of colored by-products, making it easier for resin producers to control viscosity and final product appearance during continuous operation.

Industrial grade maleic anhydride is supplied for large-scale chemical production where consistent performance is required. It is widely used in the manufacture of unsaturated polyester resins, alkyd resins, and polymer additives, as well as in the production of lubricant additives and other chemical intermediates. In practice, the material is often pre-melted and fed into esterification or modification reactors at controlled temperatures to ensure smooth dosing and prevent local overheating. Many resin manufacturers rely on its consistent purity and physical properties to maintain predictable reaction rates, control resin viscosity, and achieve uniform curing across continuous production lines. Its bulk handling and standardized packaging also support high-volume operations, allowing industrial customers to integrate it efficiently into automated production processes.

DITAI Chemical maintains stable production and inventory planning to support long-term supply programs for resin and polymer manufacturers. Regular exports to Southeast Asia, the Middle East and Europe have built practical experience in handling FOB and CIF shipments, including different shipping terms, port requirements and export documentation standards. Competitive bulk pricing is available for container and project-based orders, helping customers manage raw material costs in large-scale production. OEM packaging services, including customized bag sizes and labeling, are provided to match plant handling systems, which is especially useful for unsaturated polyester resin lines where material is pre-melted and fed continuously into esterification reactors.

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