Chemical name             Di-(4-methylbenzoyl)-peroxide

CAS NO.                             895-85-2

Brand Name                      XJ-PM50

Molecular Weight              270.3

Molecular Formula               C16H14O₄

EINECS                             407-950-9

Assay / Physical form           50%, white Paste

Reactive Oxygen Content       appx. 2.96 %

Application 

XJ-PM50 is a monofunctional peroxide which is used for the crosslinking of silicone rubber. Safe processing temperature: 85°C (rheometer ts2 > 20 min.). Typical crosslinking temperature: 110°C (rheometer t90 about 12 min.)

When crosslinked with XJ-PM50 , the peroxide decomposes into chlorine-free decomposition products, means no polychlorinated biphenyls (PCB) are generated.

With XJ-PM50, silicone rubber compounds can be cured without external pressure. 

XJ-PM50 can be incorporated easily into a silicone rubber compound on a 2-roll mill.