Zirconium discs Ø 150 feature a distinctive blue colour. They are specially designed for use on metals and hard materials, guaranteeing maximum efficiency during roughing operations. However, they are generally not recommended for finishing work, as they can cause fine micro-scratches on surfaces. A notable advantage is that the grains have the ability to self-sharpen naturally during sanding, which extends their life. The average sanding area can vary depending on the substrate, with an average of around 90 to 100 square metres per disc.
It is important to note that there is a variation in quality among zirconium abrasives, with zirconium contents ranging from 20% to 60%. Products from the Repex range, which contain 60% zirconium, are therefore recommended for optimum performance.