Kölner Fond is a water-based, one-layer gilders clay, which replaces the Gesso and bole/poliment layers of the traditional system. The Fond can be applied directly in the correct colour without warming the product. Usually, 4 to 6 layers are applied, depending on the type of the present reliefs. A dry film thickness of 150 μm must be reached everywhere where later the leaf metal will be burnished. Firstly, the Fond must be stirred. Don´t shake, otherwise air bubbles will arise. Applying the Fond occurs in at least 4 layers. As soon as the last layer has dried, it should be mildly polished with a damp cloth. Afterwards, it is polished with a dry cloth until it shines.
Formulated for brush application, Kolner Fond is a water-based burnishable gesso primer for gold, silver and composition leaf. This product – available in 7 colors- is ideally suited for creation of water gilded and burnished frames, interior architectural elements and furniture ornaments, to achieve a traditional look for less effort.