Silver Plated Aluminum filled EPDM elastomers are chosen when conductive fluoroelastomers are unable to meet the chemical compatibility requirements of your application. Extremely High Shielding Performance, light weight, excellent electrical conductivity, and very good galvanic compatibility. Our 1257 is a common choice for hardware having CBRN DECON survivability requirements with aluminum interfaces. Our 1257 is our 70 Durometer version of this particle filled EPDM elastomer group.