Luna Pre-Greyed treatment offers a high-quality grey finish for the exterior applications, with installation-ready Lunawood Thermowood Cladding, characterized by a pre-aged appearance. Luna Pre-Greyed treatment is achieved with non-toxic coating which will disappear after several years of installation and reveal the naturally greyed wood. In order to give a robust and natural appearance, the treatment is also available on a brushed surface. Both Lunawood Thermowood and the treatment are non-toxic. The coating consists only of natural ingredients: silicates, mineral pigments and lignin.