Abstract: There is disclosed a method of treating running faces subjected to wear of a workpiece in which ions or molecule chain components of fluorocarbon molecules are arranged on the surface of the workpiece. It is especially preferred to attach ions of polyfluoroether molecules. The attachment can be effected by adhesion or by chemical bonding. Principally the method according to the invention can be applied to metallic and ceramic materials, wherein especially good experiences have been made with the surface treatment of aluminum workpieces, ceramic inserts etc.