Leading manufacturer of facade systems with undercut technology With the aid of high-class facade panels, dreary building shells can be transformed into fascinating design objects. For architects, they provide countless possibilities for creativity. The secret behind this is the invisible attachment with an elaborate fastening, called undercut technique. This technique is as simple as it is ingenious. By means of a patented drilling system, a blind hole with an expanded base is drilled into the backside of the facade panel. Subsequently, the KEIL undercut facade anchor is inserted into the hole. This anchor guarantees a positive-locking fixing, which is free of expansion force. As soon as the panel is equipped with the facade anchors, it can be easily mounted onto the ventilated supporting construction. The advantages are obvious: the hidden undercut facade anchor keeps the aesthetics of the facade panel free from visible drill holes and other distracting elements.