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(Methylene diphenyl diisocyanate)


Monomeric methylene diphenyl diisocyanate is pure MDI. It is a white or pale yellow solid at room temperatures. When melted, it becomes a colorless to pale yellow liquid.



MDI is mainly used in the production of spandex, and it also can be used in the production of elastomers, thermoplastic elastomers, adhesives, coatings and sealants.