Mondur TDS Grade II is a high 2,4-isomer toluene diisocyanate. Properties / Applications Mondur TDS Grade II diisocyanate is used in the formulation of polyurethane prepolymers for elastomers, sealants, and coating applications. As with any product, use of Mondur TDS Grade II in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Information provided by Covestro |