abstract |
The present invention provides an organic-inorganic composite resin composition for coating the surface of a zinc-plated steel sheet, comprising 5-25 wt% of a polymer resin, 4-20 wt% of a silane compound, 3-10 wt% of a curing agent and 0.1-2 wt% of ferrocene compound on the basis of the total weight of the composition. |