Coating composition for drawing and ironing steel containers

An improved, sacrificial aqueous coating composition for use in drawing and ironing steel containers comprising:

• (a) from about 10 to 35% by weight molybendum disulfide;
• (b) from about 4 to 7% by weight of a low molecular weight resin having a monomer content of from about 25 to 35% acrylic acid, and from about 65 to 75% of a styrene monomer selected from the group consisting of styrene, alpha-methyl styrene, and mixtures thereof;
• (c) from about 10 to 25% by weight of an aqueous wax emulsion containing from about 15 to 25% non-volatiles;
• (d) from about 3 to 7% by weight of a high molecular weight acrylic polymer comprising from about 25 to 60% of a styrene monomer selected from the group consisting of styrene, alpha-methyl styrene and mixtures thereof, from about 30 to 50% by weight of an ester selected from methyl methacrylate, methyl acrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate and mixtures thereof, and from about 10 to 25% of an acid selected from the group consisting of acrylic acid and methacrylic acid;
• (e) from about 1 to 5% by weight of a solvent selected from the group consisting of diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether and mixtures thereof;
• (f) from about 0.1 to 0.25% by weight of a water soluble zinc containing salt, and
• (g) from about 35 to 55% by weight water.