| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface treatment agent having excellent discoloration (corrosion) prevention properties for various kinds of silver or silver alloys, for example, silver or silver alloys used for an electronic component and a lighting device such as a light-emitting diode and, particularly, capable of imparting excellent discoloration resistance to a silver plated surface.SOLUTION: A surface treatment agent for silver or silver alloys comprises liquid A comprising a metallic compound with a hydrolyzable group, and liquid B comprising a laminar silicate compound. |
