Abstract: Disclosed is an improved water reducible modified polyester resin. The improvement is including in the resin about 20 to about 50% by weight, based on total solids weight, of a mixture of hexamethoxymethyl melamine and methylated melamine formaldehyde in a weight ratio of about 2 to 1 to about 1 to 2. The mixture is preferably about 25 to about 35% of the resin based on total solids weight and the weight ratio of hexamethoxymethyl melamine to methylated melamine formaldelhyde is preferably about 1 to 1. The mixture should be at least about 75% by weight of any melamine resin present.

Abstract: Disclosed is a high solids single-package air-dryable primer containing about 15 to about 30% by weight air-dryable synthetic alkyd resin, about 10 to about 30% by weight organic solvents for the resin, at least about 0.4% by weight of a suspending agent, at least about 1 pbw of a polar additive for every pbw of the suspending agent, at least about 3% by weight of a coloring pigment, at least about 15% by weight of a corrosion inhibitor, at least about 0.3% by weight of a dryer, and about 30 to about 40% by weight of an extender pigment. The primer is prepared by mixing enough of the alkyd resin to wet the coloring pigment with enough of the solvent to optimize sheer. The suspending agent and polar additive are then added followed by the corrosion inhibitor and wetting agent. The coloring pigment is then added and the composition is ground to satisfactory particle size. Finally, the remaining ingredients are mixed in.