PURPOSE: The titled lining material, prepared by mixing an epoxy resin vehicle, etc. with specifics amount of aggregate and copper powder, suitable for a concrete floor material in the working environment where combustible substances are handled, and capable of leaking static electricity charged in the human body safely and readily.

CONSTITUTION: A lining material prepared by mixing (A) 100pts.wt. epoxy resin vehicle, preferably two-part type consisting of a bisphenol A epoxy resin and an aliphatic polyamine as a curing agent essentially, or unsaturated polyester vehicle, preferably an unsaturated polyester an ester of an unsaturated polybasic acid with a polyhydric alcohol, a vinyl monomer, preferably styrene, and a curing catalyst, preferably methyl ethyl ketone peroxide, essentially, with (B) 100W800pts.wt. aggregate, preferably quartz sand of 65W28mesh, and (C) 1W30pts.wt. copper powder, preferably particle size ≤325mesh.