EXTON, Pa. -- Global specialty chemicals manufacturer Sartomer
USA, LLC now offers SR523, a liquid coagent that shortens cure times and improves
processability of peroxide-cured elastomers compared to conventional coagents like
triallyl cyanurate (TAC). SR523 improves the properties of rubber and plastics used for
building profiles, injection molded goods, radiator hoses, wire and cable insulation, as
well as o-rings, gaskets and sealants.
It is an advanced coagent that has a unique structure encompassing both Type I and
Type II classifications. This coagent exhibits an improved rate and state of cure in
elastomer compounds. In addition, SR523 aids in the treatment of such compounds by
reducing mixing torque and improving processability.
Other elastomeric properties were also shown to increase with SR523, including the
tensile modulus. Higher concentrations of this coagent during testing resulted in slightly
greater increases to a compound's modulus compared to other coagents, including
trimethylolpropane triacrylate (TMPTA) and triallyl cyanurate (TAC). In fact, SR523
provides a significant advantage over TAC because it remains a clear liquid at ambient
temperature while TAC solidifies. The SR523 coagent also demonstrates a high scorch
resistance.
Formulators interested in learning more about SR523 can inquire with Sartomer at this
year's International Rubber Expo from October 9th to 11th (booth #420).
About Sartomer
Globally based in Exton, Pa., Sartomer USA, LLC, is part of Arkema Group. Sartomer is
the premier global supplier of specialty chemicals for ultraviolet and electron beam
(UV/EB), peroxide, and two-part epoxy/amine systems. For more than 50 years,
Sartomer has pioneered the development of these advanced technologies, introducing
hundreds of products that enhance performance in coatings, inks, adhesives,
composites, rubber and other demanding applications.
Source: Sartomer