Dissipative (1 x 10 6 to 9 ohms Rtt) Top Layer Meets ANSI/ESD S20.20 worksurface required limit and recommendation of ANSI/ESD S4.1 for contact with ESD susceptible items Electricals will not drift for the life of the mat Conductive (4 Rtt) Bottom Layer The dedicated conductive layer reduces the resistance to ground (Rtg) from the top of the surface to the groundable point ground and allows the mats to be used with ESD workstation monitors High strength nitrile rubber compound designed to withstand abrasion, stretching, and tearing Ultraviolet (UV) stabilizer additives Stabilizes color retention, ensures ESD performance over time and eliminates surface layer deterioration resulting in cracking when the product is flexed Non-humidity dependence Provides consistent electrical performance regardless of ambient humidity Lead-free RoHS compliant