It is a quick-drying water-based paint that cracks as it dries. There is no need to apply multiple layers of paint.
In the case of excessively smooth surfaces, we recommend lightly sanding them to add roughness and improve crack adhesion. A matte foundation is enough.
Apply directly or with a brush. Depending on the thickness of the application, different sizes of cracks may occur. Don't use a heat gun to speed up the drying process, just let it dry naturally. Take into account that too irregular or very small surfaces can affect the size of the cracks.