of capping agents are mono functional alcohols the type and ratio of solvents used in the synthesis of the polyurethane and in the conversion of the acrylic monomer to polymer and the solubility of the acrylic urethane copolymers formed is important a volatile enough to form an air dry tack free film in 1 hr b such that the solvent would not interfere with the polyurethane formation similarly it is also important that the solvent s have an effect on the drying characteristics and ultimate gloss of the dry coating suitable solvents include methyl ethyl ketone methyl cellosolve acetate etc and preferably a mixture of solvents such as a methyl cellosolve acetate methyl ethyl ketone mixture a ratio of from about 2 to about 7 parts acrylic monomer to 1 part fully reacted polyurethane can be used to prepare the copolymers according to this invention an especially preferred ratio is 3 parts acrylic monomer to 1 part fully reacted polyurethane pigments are used in the novel coating composition of this invention in the amounts of 0 1 20 0 pigment volume concentration preferably a pigment volume concentration of about 0 1 14 is used examples of the great variety of pigments.