KEY CONDUCTIVE NON-SPARKING SYSTEM is a nominal 1/4 inch thick conductive epoxy surfacing consisting of 100% solids epoxy and graded non-sparking graphite aggregates. It is finished with a conductive epoxy grout for excellent chemical resistance, wear and abrasion resistance. Key Conductive Non-Sparking Mortar provides a conductive surface testing between 25,000 and 1,000,000 ohms. Ideal for military/aerospace, pharmaceutical plants, hazardous industries (dust or explosion hazards). For use in any areas where the build-up of static electricity is a concern or a spark-proof floor is required. Key Conductive Non-Sparking Mortar is available with Key Conductive Novolac Epoxy topcoat for greater chemical resistance.