Patent ID: 7989075

Claim:
A chromium-free, low-temperature curable, metal-surface treatment composition comprising: 5 to 30 parts by weight of a silane compound comprising, (a) a silane compound having an epoxy group, and a silane compound having an amino group, or (b) a hydrolytic condensate thereof, or a blend of (a) and (b); 0.1 to 5 parts by weight of a vanadium compound; 0.1 to 5 parts by weight of a magnesium compound; 1 to 10 parts by weight of organic/inorganic acids; 0.05 to 2 parts by weight of a crosslinking accelerating and coupling agent; 0.01 to 1 part by weight of an antifoaming agent; 1 to 2 parts by weight of a wetting agent; and the balance being water and ethanol, based on 100 parts by weight of the total solution.