Moca Moca polyurethane curing agents , and new curing agent Moca-wh Chemical name: 4.4- methylene- bis- (ortho-chloroaniline) Cas no: 101-14-4 Applications: curing agent for polyurethane elastomers and cast polyurethanes.Curing agent for epoxy urethane resin. Moca- wh is used for pu product that requirs high hardness and wearability with light color. Give mal to henrychina2008 at sina dot com. If you have interest.