| 摘要 |
<p>A post-treating solution which has high solder wettability and, moreover, excellent corrosion resistance, even when a flux not containing a chlorine is used. This invention provides also a post-treating method using this solution, a post-treated plate obtained by applying this post-treating solution and a production method thereof. This post-treating solution, containing 100 to 600 g/1 of an aqueous type acrylic resin having an acid value of not higher than 150, 1 to 30 g/1 of a rust-proofing pigment, 1 to 100 g/1 of a water-solubilized rosin and/or 1 to 30 g/1 of a cross-linking agent, is applied so that a dry thickness is 0.05 to 2 νm.</p> |
