MDI-based products are being used all over the world to help produce superior thermoplastics, flexible foam, automotive products, adhesives, coatings, elastomers footwear and so on. MDI exists in three isomers, 2,2′-MDI, 2,4′-MDI, and 4,4′-MDI. MDI can be made to chemically react with polyols to produce polyurethane. 

MDI’s chemical name is Methylene diphenyl diisocyanate and is produced by larger companies such as Dow Chemical, BASF and many others who are all part of the Isocyanate Institute promoting safety in the MDI and TDI (Toluene diisocyanate) workplace and surroundings.

EESIFLO has successfully developed an installed a working product that can identify the difference between polymers by measuring the dielectric constant. This was made possible by cooperating with operators in the chemical industry. These units have been installed and operating for several years.