Silver tarnish inhibitor AC-20 (sulfur-based rust inhibitor)
A protective film is formed on the silver surface, allowing the silver luster to be maintained for a long time. The protective film has good solderability and a low electrical contact resistance.
This is a silver discoloration preventive agent (sulfur-based rust inhibitor) designed to protect the surfaces of electrical and electronic components, as well as jewelry and utensils made of silver and silver-plated materials, from various harmful environments. The environments that affect silver and silver-plated surfaces are diverse, but particularly when exposed to atmospheres containing sulfur gas, sulfides form on the silver surface, resulting in a black discoloration of the silver surface and an increase in electrical resistance in electronic components, leading to reduced conductivity. The silver discoloration preventive agent AC20 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. AC-20 provides the highest discoloration prevention effect against sulfur gas among the AC series.
- Company：ＡＳＡＨＩ
- Price：10,000 yen-100,000 yen
