Distillation of the mixture gives a mixture of oligomeric polyisocyanates, known as polymeric MDI, and a mixture of MDI isomers which has a low 2,4′ isomer content.

The Alliance for the Polyurethanes Industry, prepared this guide to help remind professionals like yourself about important health and safety aspects of working with MDI or polymeric MDI.

What is PAPI™ 27 Polymeric MDI? A polymethylene polyphenylisocyanate that contains MDI. This product has a narrow molecular weight distribution and a high reactivity.

Diphenylmethane diisocyanate (MDI) is a member of the diisocyanate family associated with polyurethane chemistry. The term polyurethane applies to a large number of polymers formed …

Understand the differences between Polymeric MDI and Monomeric MDI, and learn how to select the optimal type for your specific polyurethane product needs.

The Center for the Polyurethanes Industry (CPI), prepared this guidance to provide information about important health and safety considerations when working with MDI or polymeric MDI.

There are two primary aromatic diisocyanates: toluene diisocyanate (TDI) and methylenediphenyl diisocyanate (MDI). TDI is used primarily in the production of flexible foams. MDI, the second …

Gantrade offers a wide variety of both monomeric and polymeric, multifunctional Methylene Diphenyl Diisocyanate (MDI) to meet a variety of market applications in packaging, …

Oct 1, 2025 · Polymeric MDI-based coatings offer excellent chemical resistance, adhesion, and weatherability. They are used in industrial, automotive, and construction applications.

Polymeric, pure and modified MDI products that have been frozen will exhibit the same dimerization characteristics as pure MDI. Unless proper action is taken to heat or melt the …