Blue ESD High Temperature Mat Kits are made of a durable 2-ply rubber material. There is a conductive layer supporting the static dissipative top layer that creates outstanding electrical performance characteristics. Resistance from surface to ground point is 8x10sup6-8/sup and resistance between two points on surface is 2x10sup6-8/sup. Charge Decay time is 0.01 seconds. These mats are .080 inches thick and have a tensile strength of 1000 psi. These ESD Rubber mats offer excellent resistance to oil, grease and most common solvents, hot solders and soldering irons. Kits include the mat, a wrist strap and a 15 Ft. ground cord.