Method of coating with lead-free electrodeposition coating composition and coated article

A coated articles, comprising:

• an alloyed hot-dip galvanized steel plate coated with a lead-free cationic electrodeposition coating composition which is electrodeposited on the steel plate, the lead-free cationic electrodeposition coating composition including a binder resin and a plurality of pigments,
• wherein the binder resin includes a cationic base resin and a crosslinking agent, and the pigments include approximately 5 to 30% by mass of an aluminum phosphate pigment, and approximately 5 to 30% by mass of a silicon oxide pigment having a pore volume of approximately 0.44 to 1.8 ml/q and an average particle size of approximately 10 μm or less.

An automobile body, comprising:

• an alloyed hot-dip galvanized steel plate coated with a lead-free cationic electrodeposition coating composition which is electrodeposited on the steel plate, the lead-free cationic electrodeposition coating composition including a binder resin and a plurality of pigments,
• wherein the binder resin includes a cationic base resin and a crosslinking agent, and the pigments include approximately 5 to 30% by mass of an aluminum phosphate pigment, and approximately 5 to 30% by mass of a silicon oxide pigment having a pore volume of approximately 0.44 to 1.8 ml/q and an average particle size of approximately 10 μm or less.