The MT4500 Series Two-Layer Rubber ESD Table Mat is a made from durable 2-ply rubber. A conductive layer backs the static dissipative top layer that creates outstanding electrical performance characteristics. The 4500 Series offers excellent resistance to hot solders, soldering irons and most solvents. WIth exceptional static- and heat-resistant properties, the MT4500 is sure to effectively protect your sensitive items and instruments, as well as your work station. Meets or exceeds requirements of ANSI ESD-S20.20 and the recommendations of ESD 4.1. Available in light blue, royal blue, gray, and green.