Acrylic-based polyurethane coatings (PU) are chemically curing solvent-based coatings, in which two raw material groups (hardeners and binders) react with one another. When completely cured, PU acrylic coatings form insoluble, extremely durable PVC-safe coating films that are suitable for all types of wood. Their main feature is that they are highly resistant to chemicals and provide very good surface hardness.