3M™ Mats and Runners 8200 Series are soft table and floor mats with a unique three-layer construction. The top layer is durable static-dissipative vinyl, which has sufficiently low resistance to discharge static-laden conductors, yet will prevent the shorting of pins on the backs of printed circuit boards laid on the mat. The middle layer is a highly conductive scrim that provides the main discharge path to ground, and the bottom layer is static-dissipative foam, providing a durable non-skid cushion.