Pigmented primer composition for forming an N-acyl urea coating

This disclosure provides a pigmented primer composition for forming an n-acyl urea coating on a substrate. The pigmented primer composition includes a polycarbodiimide-polyurethane hybrid. The pigmented primer composition also includes an acid functional polymer and an organic solvent, and includes less than or equal to 10 weight percent of water based on a total weight of the pigmented primer composition. The pigmented primer composition also includes a pigment, an inorganic filler, and less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the pigmented primer composition. The n-acyl urea coating exhibits corrosion resistance of 2 to 10 as determined using ASTM B117 and ASTM D-1654-08 on a substrate that is unpolished cold rolled steel, aluminum, or galvanized steel. 本公开提供种用于在衬底上形成n-酰基脲涂层的着色的底漆组合物。所述着色的底漆组合物包括聚碳化二亚胺-聚氨酯杂合物。所述着色的底漆组合物还包括酸官能性聚合物和有机溶剂，并且按所述着色的底漆组合物的总重量计包括小于或等于10重量％的水。所述着色的底漆组合物还包括颜料、无机填料和每百万重量份的所述着色的底漆组合物小于约100重量份的甲苯二异氰酸酯。如使用ASTM B117和ASTM D-1654-08在未抛光冷