Fluorinated ester compound additives for architectural coatings

An article comprising a substrate and a dried coating thereon, where the dried coating results from drying a composition comprising (a) a coating base selected from a water-dispersed coating, an epoxy polymer coating, an alkyd coating, a Type I urethane coating, or an unsaturated polyester coating;

• and (b) a fluorinated ester compound having a plurality of fluoroalkyl thioether groups, said fluorinated ester compound selected from Formula (I), Formula (II), Formula (III), or Formula (IV):
• wherein
• the number average molecular weight of the fluorinated ester compound is 30,000 Da;
• R1 is a linear or branched C1 to C4 alkyl group;
• t is an integer of 2 to 4;
• n is an integer ≥3;
• x is independently an integer of 1 to 4;
• y is independently an integer of 1 to 10;
• Y is a linear or branched organic linking group that is divalent, trivalent, or tetravalent, selected from the group consisting of linear or branched C1 to C20 alkylene groups, carbonyl groups, thioether groups, aryl groups, cycloalkyl groups, ether groups, hydroxyl groups, —NHC(O)—, uretdione, allophanate, isocyanurate, and mixtures thereof;
• and
• Rf is independently a straight or branched perfluoroalkyl group of 2 to 20 carbon atoms, optionally interrupted by one or more CH2, CFH, ether oxygens —O—, or combinations thereof.