Abstract: A floor structure on a base 1 comprising a primer 2 and a floor covering 3 which is atop the primer and comprises a floor coating and/or an adhesive bond, wherein the primer 2 is obtained from an aqueous dispersion of at least one acrylic polymer containing 0.001-0.2% by weight of at least one benzoxazole-based system, based on the total weight of the aqueous dispersion. Such systems in aqueous dispersions containing at least one acrylic polymer do not impair storage stability and also permit good detectability of the coating on the base, both shortly after application of the coating and 6 months thereafter. More particularly, no reduction in detectability over time is found.

Abstract: A floor structure on a base 1 comprising a primer 2 and a floor covering 3 which is atop the primer and comprises a floor coating and/or an adhesive bond, wherein the primer 2 is obtained from an aqueous dispersion of at least one acrylic polymer containing 0.001-0.2% by weight of at least one benzoxazole-based system, based on the total weight of the aqueous dispersion. Such systems in aqueous dispersions containing at least one acrylic polymer do not impair storage stability and also permit good detectability of the coating on the base, both shortly after application of the coating and 6 months thereafter. More particularly, no reduction in detectability over time is found.