ESD Rubber mat kit have two layers; the top one is a blue static dissipative rubber layer laminated to a black conductive rubber bottom layer. These ESD high temperature mat kits offer excellent resistance to oil, grease and most common solvents. It is heat and solder resistant, will not Delaminate and easy to clean. These ESD rubber mats are very light compared to our single layer and three layer mats. Temperature resistance to 200 degree F. Applications: aerospace assembly, electronic repairs, medical assembly and soldering, computer operators, electronic assembly and manufacturing, pharmaceutical plants, cleanroom operation, fiber optics, aerospace and hospitals. To be used in work surface applications. Static dissipative synthetic rubber laminated to a bottom layer of conductive rubber. These mats are resistant to degradation by inorganic acids, organic acids, reducing agents, detergent solutions, alcohols, aliphatic hydrocarbons, mineral oil, amines, and aldehydes. 1/16-inches thickness. Matte finish, non-embossed pattern. Tensile strength: greater than 1000 psi. Elongation: 300 percent minimum. Hardness: 60 +/- 5, shore A. Charge decay time: less than 0.01 second. 190 degree F temperature.