Von Roll is the recognized market leader in the fields of insulation products and systems for the electrical machinery industry. In addition, Von Roll offers technical application support and has extensive low and high voltage testing facilities. Von Roll recently acquired the John C. Dolph Company (Dolph), one of the leading makers of resins and varnishes for the electrical insulation industry. The acquisition significantly expands Von Roll’s product portfolio of insulating resins and varnishes and will further increase its market position in the American, Asian and European sales regions.