A thin coaxial cable is provided comprising an inner conductor; an outer conductor being an electroplated conductive metal layer; a thin electrically insulating layer made of a polymeric enamel resin or of glass of at most approximately 15 m thickness separating said inner and said outer conductor; said insulating glass or polymeric enamel resin layer is coated with a layer of an adhesion promoting primer material or said insulating polymeric enamel resin layer is coated with a layer of ABS resin, and an electroless plated metal layer is deposited between said primer or ABS resin layer and said electroplated conductive metal layer.