SINOMER® PM839-S40 is a modified polymercaptan curing agent, designed as a high-performance alternative to CAPCURE 40 SEC HV,GABEPRO GPM-890CB and GABEPRO GPM-895FC. When mixed with epoxy resins (such as BER-128/E51), it exhibits extremely rapid gelation and curing, even at low temperatures and in thin films. It offers significant advantages over other curing agents in rapid repair, winter construction, and low-temperature operations. This grade is specifically designed to rapidly cure standard epoxy resins within approximately 1 minute (typically 40 seconds gel time for a 20g mass at 25°C), ensuring high adhesion strength.
