DuPont Performance Polymers Launches Two New Elastomer Solutions

DuPont Performance Polymers underscores two new DuPont™ Vamac® ethylene acrylic elastomer (AEM) products at the International Elastomer Conference, October 12-15 in Cleveland, Ohio, emphasizing its commitment to developing new materials-based solutions that help the auto industry cost-effectively lower emissions and improve fuel economy to meet global regulations.

“While very different solutions, together these new Vamac® AEM products show DuPont’s commitment to advancing material science and building up its portfolio to support the automotive industry,” said Patrick Cazuc, global marketing manager for Automotive at DuPont Performance Polymers. “Vamac® AEM Elastomers are an important and growing part of our materials portfolio.”

DuPont™ Vamac® VMX5000 AEM pre-compounds can be used in seals and gaskets, air management systems and high temperature coolant hose covers that need to perform at temperatures up to 190°C.  Compared with Vamac® Ultra compounds, which quickly set new performance benchmarks when they were launched about 5 years ago, Vamac® VMX5000 compounds increase the upper temperature limit +15 to +20°C.  In certain markets they can replace fluoroelastomer (FKM) compounds where end-use temperature requirements range between 160°C to 190°C.

“Vamac® VMX5000 takes temperature limits to new levels so components made from this elastomer family can stand up to more aggressive engine environments,” said Cazuc. “In some applications, Vamac® VMX5000 can significantly lower cost.” 
DuPont™ Vamac® VMX2122 AEM is a new dipolymer that processes significantly better than Vamac® DP.  Studies show Vamac® VMX2122 compounds can have an injection molding cycle time under two minutes and still have good compression set values – without using a post-cure process.  For extrusion applications, Vamac® VMX2122 compounds do not have the die build up problems seen with Vamac® DP compounds.

“The combination of improved processing and elimination of the post cure step are two attractive features of the Vamac® VMX2122 compounds,” said Ed McBride, DuPont Performance Polymers technology associate, who will provide insight into the science behind new Vamac®VMX2122 in a Specialty Elastomer session called “Improved AEM Dipolymer – Peroxide Curable” on Thursday, Oct. 15 at 9 a.m.

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