The Vallejo pigments, a selection of natural earth and synthetic pigments, have been chosen for their permanence, excellent light fastness, and extra fine milling of their particles, which facilitates mixing and application on models and dioramas. The range of pigments includes a series of colors selected to represent the wear and erosion caused by hard use and exposure on vehicles and buildings, to reproduce the dust caked on the tracks of tanks, the rust on armor, and the wide range of effects caused by climate and geographic conditions of deployment. Pigments can be applied in their dry form, directly by brush on the model, as they have excellent adherence; they can also be fixed in place with thinner when used to portray dry mud or accumulated dust. With pigment binder, the pigments can be used to create volumes, such as accumulated dirt and mud. Painting tools are cleaned with water.