Abstract: A coating composition that contains as the film-forming binder an acrylic vinyl oxazoline polymer, an alkyd resin and an additive of a polyisocyanate of the formula ##STR1## where R.sup.7 is a hydrocarbon group having six carbon atoms; ultraviolet light stabilizers, an organic solvent and optionally a plasticizer; this composition cures rapidly at ambient temperatures to a tough, durable, weatherable, scratch resistant and gasoline resistant finish particularly useful for repairing finishes of automobiles or trucks.

Abstract: An additive for alkyd resin coating compositions which is a blend of an isocyanate isocyanurate, dibutyltindilaurate and an organic solvent. Coating compositions containing this additive are used for coating automobiles and trucks and have good initial gloss and hardness and good gloss retention on weathering.

Abstract: A water based coating composition that can be dried at ambient temperatures and is useful for coating metal or plastic substrates and in particular for finishing or repairing automobiles and trucks; the coating composition contains watersoluble organic solvent, binder and pigments; the binder is of(1) an alkyd of an esterification product of drying oil fatty acids, aromatic polycarboxylic acids and a polyhydric alcohol;(2) an alkylated melamine formaldehyde resin,(3) an acrylic dispersing resin and(4) an organo metallic drier;the improvement that is used with this composition is (1) a polyisocyanate such as the biuret of hexamethylene diisocyanate or isophorone diisocyanate and (2) an aqueous ammonia solution.

Abstract: A water reducible coating composition that by the addition of a solution of water and an amine or ammonia forms a sprayable nonair polluting coating composition that can be dried at ambient temperatures and is useful for coating metal or plastic substrates and in particular for finishing or repairing automobiles and trucks; the coating composition contains a water soluble organic solvent, a binder and pigments.The binder is of(1) an alkyd resin that is preferably the esterification product of soya oil fatty acids, trimellitic anhydride isophthalic acid and trimethylol propane;(2) an alkylated melamine formaldehyde resin,(3) an acrylic dispersing resin and(4) an organo metallic drier.

Abstract: A coating composition containing(1) an acrylic polymer having pendent hydroxyl containing ester groups;(2) cellulose acetate buryrate,(3) an alkyl acid phosphate,(4) a metallic flake pigment such as aluminum flake and, optionally other pigments,(5) an ultraviolet light absorbing agent(6) an organo metal catalyst, and(7) an organic polyisocyanate;The composition forms an excellent finish for the exterior of automobiles and trucks since the finish is glossy, durable and weatherable and has excellent metallic glamour.

Abstract: A coating composition for flexible hydrocarbon rubber substrates or polyvinyl chloride substrates ofA. an acrylic polymer containing hydroxy groups and other adhesion promoting groups,B. a hydroxy terminated ester or polyester, andC. an organic polyisocyanate;The composition is useful as an original finish and as repair finish for repairing damaged finishes on flexible substrates, such as flexible filler panels located between the bumper and chassis of trucks and automobiles.