CURING AGENT Application: curing agent for polyurethane elastomer and epoxy resins. The trend is going to non-toxic products for environmental protection. Richcure M ( MOCA) Richcure ML ( Liquid MOCA). This product can be produced according to customer's request ratio between PPG:MOCA. Richcure MDEA Richcure M-DIPA Richcure MDA