Suprasec 5025 Polymeric diphenylmethane diisocyanate Huntsman Polyurethane (PU) - Isocyanates >> MDI, diphenylmethane diisocyanate >> Polymeric MDI Used for the formulation of adhesives, coatings and elastomers. Suprasec 5025 High functionality polymeric MDI Used for one- and two-component systems. High functionality polymeric MDI. Used for the formulation of one- and two-component coatings.