Sustainability does not only refer to reduced emissions or the use of fewer raw materials. It also includes reusability and longer product life cycles. With the use of the Arkopal B 5 refractory coating from Hüttenes-Albertus, casting tools, ingots and refractory bricks, such as those from DWL Wolf, have a significantly longer service life. The cleaning effort is also minimized, since less buildup occurs thanks to the increased protective effect. Application is facilitated by the choice of spraying, brushing or dipping.