Application areas: polyurethane rigid foam, flexible foam, self-skinning, shoe materials Characteristics: delayed, heat-sensitive Function: prolonging emulsion time, prolonging drawing time Use system: MDI/TDI/PAPI/mixed isocyanate DY-215 Special amine delayed gel catalyst, providing excellent pre-flow, delaying drawing time, not affecting post-curing, accelerating product release. DY-225 Diol solution of modified bis(dimethylaminoethyl) ether, delayed foaming catalyst, delayed emulsification time,...