The use of aqueous coating materials is becoming increasingly popular, especially with regard to environmental aspects. However, their performance profile is not yet comparable in all facets with solvent-based systems [1]. For example, in direct-to-metal (DTM) applications, aqueous systems are usually less resistant to corrosive environments, while aqueous wood coatings are more susceptible to tea, wine or coffee stains. The right choice of additive may have a positive impact on the properties described. Aqueous systems are complex from the formulator's point of view. Careful selection of the additives used is demanding and requires more ...