PRIMARY ANTI-CORROSIVE PAINT COMPOSITION AND STEEL PLATE WITH PRIMARY ANTI-CORROSIVE PAINT FILM

摘要

According to the present invention, (a) of zinc and, (b) an amorphous glass powder containing an alkali metal oxide in the composition components and, (c) siloxane-based binder, and (d), characterized in that comprising the organic solvent there is provided a primary rust-preventive coating composition. According to the present invention, the primary anti-corrosive coating composition is applied, there is provided a steel sheet having a primary rust-preventive coating film. ; The primary anti-corrosive coating composition of the invention is also subjected to welding with more than 100cm / min high speed, without lowering the corrosion resistance can be formed in the coating film can suppress the occurrence of defects such as blow holes or pits. ; Primary rust-preventive paint, steel, zinc, alkali metal oxides, amorphous glass powder, siloxane-based binder