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A modified isocyanate curing agent, used together with polyaspartic polyurea, offers a balance of rigidity and flexibility. It provides adhesion strength of 13–25 MPa, with elongation at break reaching up to 300%–500%.

RUQINBA manufactures high-performance isocyanate curing agents engineered for superior polyurethane and polyurea coating systems. Our IPDI isocyanate hardeners deliver exceptional mechanical properties and processing advantages for demanding industrial applications.

Premium IPDI Curing Agent Technology

H 5113 Modified Isocyanate Curing Agent

Our flagship IPDI hardener for polyurethane coatings features advanced chemistry optimized for polyaspartic polyurea systems, providing outstanding balance between rigidity and flexibility for diverse coating applications.

Superior Performance Characteristics

Exceptional Mechanical Properties

▸ Adhesion Strength: 13-25 MPa on concrete, steel, and metal substrates
▸ Elongation at Break: 300%-500% for superior flexibility and crack resistance
▸ Chemical Resistance: Outstanding protection against acids, solvents, and environmental exposure

Processing Advantages

▸ Extended Pot Life for improved application workability
▸ Low Temperature Cure enabling year-round application flexibility
▸ Excellent Flow Properties ensuring smooth, uniform coating finish

Key Coating Applications

Polyurethane Coating Systems

Our polyurethane isocyanate hardeners excel in industrial flooring, protective coatings, and automotive refinish applications requiring long-term durability and chemical resistance.

Polyurea Coating Solutions

Fast-cure polyurea hardeners designed for spray applications, tank linings, and waterproofing systems where rapid turnaround and superior performance are essential.

Polyaspartic Coating Formulations

Optimized isocyanate curing agents for polyaspartic systems in decorative concrete, garage floors, and commercial flooring requiring UV stability and color retention.

Quality & Technical Support

RUQINBA's modified isocyanate technology undergoes rigorous quality control to ensure consistent performance and coating properties. Our technical team provides comprehensive formulation assistance and application guidance for optimal isocyanate hardener performance.

Request technical specifications and samples to evaluate our IPDI isocyanate curing agents in your coating formulations.