Aminoplast-ester coating compositions which are substantially solvent-free and which have good resistance to solvents and chemical attack and good adherence to metals and good mechanical properties are produced from an aminoplast-ester mixture wherein the ester has a molecular weight of less than 600 and is the esterification product of one or both of ethylene glycol and 1,2-propanediol and a mixture of phthalic acid and adipic acid or like acids.
