For research and development scientists and product formulators, a deep understanding of the technical specifications of raw materials is essential. Polymeric MDI Isocyanate (PMDI), CAS number 9016-87-9, is a complex yet highly effective chemical compound with distinct properties that dictate its performance in various applications. As a leading MDI 9016-87-9 manufacturer, we provide detailed technical information for your formulation needs.

Polymeric MDI is characterized by its liquid state at room temperature, typically appearing as a dark brown or amber liquid. Its viscosity is a critical parameter, often falling within the range of 150-250 mPa·s at 25°C, though this can vary. The -NCO content, typically between 30-32%, signifies its reactivity and is a key determinant in the polyurethane formation process. Its average functionality is also important, usually ranging from 2.2 to 3.0, which influences the cross-linking density and final properties of the polyurethane foam.

When you buy Polymeric MDI Isocyanate for rigid PU foam, understanding these specifications helps in optimizing reaction conditions and achieving desired foam characteristics like cell structure, rigidity, and insulation value. For formulators, knowing the precise NCO content is crucial for calculating stoichiometric ratios with polyols, ensuring complete reactions and minimizing residual monomers.

As a dedicated polymeric MDI supplier in China, we ensure that our product meets these technical standards consistently. We understand that for rigid polyurethane foam raw material wholesale procurement, reliability in specifications is as important as price. Our commitment extends to providing comprehensive technical data sheets and samples for thorough evaluation.

We encourage R&D professionals to leverage our expertise. Whether you are developing new applications or seeking to improve existing formulations, our technical team is available to answer your questions about our Polymeric MDI Isocyanate and to discuss how it can best serve your innovation goals.