ANTI-CORRISION VARNISH COMPOSITION AND FORMING METHOD FOR ANTI-CORRISION COATING LAYER USING THE SAM

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Disclosed are an anti-corrosion varnish composition and a forming method for an anti-corrosion coating layer using the same. According to one embodiment of the present invention, the anti-corrosion varnish composition comprises : 30 to 60 wt% of a soluble silicate polymer prepared by polymerizing at least one of sodium silicate, potassium silicate, lithium silicate and colloidal silica; more than 0 to 5 wt% of alcohol; 5 to 35 wt% of a metal mixture comprising aluminum, zinc and germanium oxide; 5 to 25 wt% of silane condensate; 0.1-10 wt% of rare earth oxide; and the remainder consisting of water. The anti-corrosion varnish composition has excellent attaching properties with a base material.(AA) Embodiment 1(BB) Embodiment 2(CC) Comparative example 5(DD) Before the test(EE) 1, 000 Hr elapsedCOPYRIGHT KIPO 2018