Isonate M 143 Isocyanate Dow Chemical PU - Isocyanates >> MDI, diphenylmethane diisocyanate >> Modified MDI ADHESIVE SEALANT Modified MDI ISONATE* M 143 is a light-yellow, low viscosity, modified diphenylmethane diisocyanate containing a high percentage of pure diphenylmethane diisocyanate, and a lesser amount of polycarbodiimide adducts. ISONATE M 143 is used for high performance compact and micro-cellular polyurethane elastomers, printing rolls, mechanical parts, and flow-inplace gaskets. In addition ISONATE M 143 can be used in the manufacture of polyurethane coatings, adhesives and sealants. Technology for coating systems of both solvent type and newer solvent-less, 2-component varieties have also been readily adaptable to ISONATE M 143 due to its ease of reaction and excellent handling characteristics. Light-yellow, low viscosity, modified diphenylmethane diisocyanate containing a high percentage of pure diphenylmethane diisocyanate, and a lesser amount of polycarbodiimide adducts. Used in the manufacture of polyurethane adhesives and sealants.