Anti Static High Temperature Mats are made of .08 inch thick static dissipative rubber layer laminated at the top and a black conductive rubber layer at the bottom. Charge decay time is <0.01 seconds. These mats offer excellent resistance to oil, grease and most common solvents, hot solders, and soldering irons.They are also known as Two Layer Anti Static Rubber Mat Kits. Bertech's Anti Static High Temperature Mats are also available in kits, which include a mat, an adjustable wrist strap, and a grounding cord.