überglasur
Überglasur refers to a decorative technique in ceramics where a glaze is applied over an already fired glaze. This secondary glaze typically contains metallic oxides that create specific colors or effects when fired at a lower temperature than the initial glaze. Common überglasur colors include gold, platinum, and various iridescent finishes. The process allows for intricate detailing and embellishment that cannot be achieved with a single glazing application. Überglasur is often used on functional tableware, decorative ceramics, and fine china to enhance its aesthetic appeal. The application requires precision to ensure the desired outcome, as the überglasur layer is usually quite thin and can easily be disrupted. Firing temperatures for überglasur are critical; too high, and the delicate überglasur can melt away or become dull, while too low, and it may not adhere properly or achieve its intended color. This technique originated in historical ceramic traditions and continues to be practiced by artisans today.