Solution composition for surface treatment of steel sheet and surface-treated steel sheet using same
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United States of America
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Mar 26, 2024
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app pub date -
Sep 28, 2017
filing date -
Sep 28, 2017
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Abstract
Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.
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