... 2surface resistance 10^6-8 ohm/sq 3.Materials rubber 4.2-layers mat 5.Will not peel, chip, or curl ... ESD Anti-static rubber Mats Characteristics :1) Retain equipotential ... ) Will not peel, chip, or curl.Materials : 1) 2-layers mat -Top layer : static dissipative NBR. Top layer – ... .P Ketone5KV decay time < 0.01sec. 2- layers ESD Mat,ESD Rubber Mat,ESD Floor Mat