Silver Plated Copper filled Silicones are of the highest performers for Shielding Effectiveness. These elastomers are highly conductive, and meet levels of shielding that are not able to be achieved by most conductive elastomers. Specifically recommend for applications that have controlled environments, due to some incompatibility with dissimilar metals with regard to galvanic corrosion. Our 1068 is a 80 durometer version of these materials.