... two layers.The facial layer is ESD layer;the other is conductive layer. 2-layer ESD Mat Antistatic SurfaceSurface Resistance106~109Ω ... 106ΩAbrasive Static Potential≤50V Bulk Resistance106-109ΩSpecification1 ESD layer resistance:107-109Ω.2,condutive layer resistance:103-106.Ω3,static ... 900mm,1000mm,1200mm,1600mm,1800mm.9,length:10mm,20mm.Note:ESD rubber mat has two layers.The facial layer is ...