Recording materials having a surface lubricant layer for use in electroerosion printing

Electroerosion recording materials are provided with a surface lubricant film or overleaf of lubricating conductive material in a polymeric binder. The lubricating conductive agent reduces stylus scratching of the conductive layer during electroerosion printing, improves contrast, provides a beneficial coating on the writing electrode or stylus and improves the handling and writing characteristics of the recording material. The lubricating conductive agent/polymer films are especially useful where the substrate of the recording material is light transmissive and, after the electroerosion process, the resulting product is suitable for direct-negative applications. The described material comprises an overlayer of protective lubricant composition on the stylus-contacting surface of said material, said lubricant composition comprising conductive particles of high lubricity dispersed in a polymeric binder, the sdensity of said overlayer being from about 5 to 50 micrograms per square centimeter, and the ratio of binder to graphite in said overlayer being sufficient substantially to prevent graphite flake off during handling and use of said material.