Schlegel Electronic Materials (SEM) C12 Nickel/Copper EMI gaskets provide premium shielding for high-range applications in industries including telecommunications, optical systems, mainframes and supercomputers. The performance is tied to the product design, which consists of a layer of copper topped by a layer of nickel, plated to a polyester woven substrate. This exclusive C12 coating adds durability and versatility, providing galvanic compatibility with a wide range of materials.