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.

XJ-PM500 is equivalent to Pergan PEROXAN PMB-Paste 50 SI, Nouryon Perkadox PM-50S-PS .