A protective film is formed on the silver surface, which maintains the luster of the silver for a long time. The protective film has good solderability and a low electrical contact resistance.
AC-70 is designed to maintain resistance to sulfur gas like AC-20 and to form a thin, uniform protective film. Due to the thin and uniform protective film, there is no unevenness in the thickness of the protective film even when applied to glossy silver and semi-gloss silver plating. It is a silver discoloration preventive agent used to protect the surfaces of electrical and electronic components, as well as jewelry and utensils, from various harmful atmospheres. The environments that affect silver and silver-plated surfaces are diverse, but particularly when exposed to atmospheres containing sulfur gas, sulfides are generated on the silver surface, causing the appearance of the silver surface to turn black, increasing electrical resistance in electronic components, and reducing conductivity. The silver discoloration preventive agent AC-70 forms a strong film on the silver surface, protecting it from sulfide and oxidation. Additionally, the protective film has good solderability and low electrical contact resistance. Being water-based and neutral, it is also easy to treat wastewater. Like AC-20, AC-70 provides a high discoloration prevention effect against sulfur gas within the AC series.
- Company：ＡＳＡＨＩ
- Price：10,000 yen-100,000 yen
