Sartomer Introduces SR523 Coagent for Gaskets and Sealants

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 compounds 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 years 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