Suprasec 1004 Modified diphenylmethane diisocyanate Huntsman Polyurethane (PU) - Isocyanates >> MDI, diphenylmethane diisocyanate >> Modified MDI Used for the formulation of adhesives, coatings and elastomers. Suprasec 1004 Low-functionality reactivity and viscosity modified pure MDI used in low reactive systems and prepolymers Low-functionality reactivity and viscosity modified pure MDI. Used in the formulation of coatings and in low reactive systems and prepolymers.