Heat fused thermoplastic 2-layer vinyl Dissipative (1 x 10 6 to < 1 x 10 9 ohms Rtt) top color layer Limited lifetime warranty 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 (<10 6 Rtt) bottom black 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 continuous monitors Lo-Char flame retardant additive Meets the minimum standards for NFPA fire and smoke safety Laser engraved with ESD protective symbol, resistance, and manufacturer information Identifies ESD protective product for control and auditing purposes Lead-free RoHS 2 and REACH compliant