Fabric-Over-Foam Metallized Shielding Gaskets Laird Performance Materials Fabric-Over-Foam (FOF) Metallized Shielding Gaskets provide soft shielding with a durable design to suppress Electromagnetic Interference (EMI). These FOF gaskets feature shielding effectiveness of >,100dB across a wide spectrum of frequencies, and extremely low compression forces allow for the use of lighter materials. The low surface resistivity of 0.07Ω/square, dependent on the fabric, helps to provide improved conductivity. The Laird EMI gaskets are available in a variety of shapes and thicknesses to meet applications that require low compression force but still need high-conductivity and shielding attenuation.