Improved Chrome Free Resin Composition For Good Sustainability At High Humidity Or At High Temperature High Humidity Environment By Using The Resin Composition And The Surface Treating Method

摘要

The present invention provides improved corrosion resistance, alkali resistance, processability and conductivity, heat resistance and chemical resistance, out ongo moisture resistance, especially for high chromium component resin plate containing no surface treatment composition, and a method for producing surface-treated steel sheet prepared there from of the steel sheet using the same. The surface-treated steel sheet is a mixture of soft and hard urethane resin and urethane-based resin as a resin composition, Ti or Zr oxide organic phosphate, a single aluminum dihydrogenphosphate aluminum, at least one selected from a first group consisting of zinc phosphate and hydrated manganese phosphate phosphate compound, and a resin composition comprising a water repellent agent and a solvent prepared by coating a 300 to 1,800 / on the steel sheet, as well as the surface-treated steel sheet obtained is excellent corrosion resistance, the conductivity and chemical resistance, particularly excellent heat resistance, moisture resistance out ongo is.