Suprasec 2054 Diphenylmethane diisocyanate based prepolymer Huntsman Polyurethane (PU) - Prepolymers >> Isocyanate >> MDI based Used for the formulation of adhesives, coatings and elastomers. Suprasec 2054 Low-functionality MDI based prepolymer for polyurea systems Excellent tear strength and good E-modulus Low-functionality MDI based prepolymer for polyurea systems. Used in the formulation of coatings. Provides very good tear strength and good E-modulus.