Abstract: A conductive coating composition containing solvents and 40-75% by weight of film forming binder and pigment in a pigment to binder weight ratio of about 1:100 to 100:100; wherein the binder contains(A) a hydroxy contain polyester resin and(B) an aminoplast crosslinking agent; wherein the electrically conductive pigment is a silica which is either amorphous silica or a silica containing material, the silica is in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from about 1-30% by weight of the tin oxide and the composition forms a coating on a substrate that has a surface conductivity of at least 100 Randsburg units. The coating can be used on metal or plastic substrates.

Abstract: A primer composition containing solvents, a film forming binder and pigments of an electrically conductive carbon black pigment and the binder contains about(1) 40-70% by weight of a polyester copolymer having linear segment with hydroxyl groups and a hydroxyl number of about 15-300 and a number average molecular weight of about 300-3,000 and branched chains having hydroxyl groups and having a hydroxyl number of about 175-300 and a number average molecular weight of about 500-2,000 and are attached to linear segment by esterification of the hydroxyl groups with a diacid or a anhydride; and(2) 30-60% by weight of an alkylated melamine formaldehyde crosslinking agent;wherein the composition forms a hard flexible coating on a substrate whereby the coated substrate can be bent 180.degree. around a 1/2 inch mandrel with the coating facing outward and the coating exhibits substantially no breaks or cracks when tested at -80.degree. C. and the coating has a surface conductivity of at least 160 Randsburg units.

Abstract: A thermosetting high gloss color-keyed primer-surfacer comprises 50-70% by weight of a film-forming component consisting essentially of, by weight, 40-70% of a polyester polyol formed by reaction of dimethyl 1,4-dicyclohexanedicarboxylate, dicarboxylic acids, and branched-chain glycols; 20-40% of an aminoplast resin; and 5-10% of an epoxy resin.