Abstract: The invention relates to a multi-layer coating system for a body (1) made of a building material, wherein the coating system has a sandwich-like design comprising at least three layers, namely: a first base layer (2) that comes in contact with the body, comprising a fiber-free and granule-free two-component epoxy resin; an intermediate layer comprising a flat random fiber non-woven material (3); and a sand-finished top layer (4) comprising a fiber-free and granule-free two-component epoxy resin. The invention further relates to a method for producing such a coating system.