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ISONATE 143L - MOBIL is a polycarbodiimide-modified diphenylmethane diisocyanate. Liquid at room temperature, this product has a low viscosity and good storage stability down to 75°F (24°C). The polycarbodiimide adduct offers extra flexibility because adduct formation is reversible (dissociation generates an additional isocyanate function). The carbodiimide linkage aids the stabilization of the polymer against hydrolytic degradation. Because this product can be used alone or in mixtures with prepolymers, its higher functionality offers faster demold times than is ordinarily possible with linear prepolymers. A unique combination of high modified MDI content, available carbodiimide, and liquid state allows ease of handling, ease of processing and maintenance of high physical properties under strenuous wear and environmental conditions.