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 low electrical contact resistance.
This is a silver discoloration preventive agent designed to protect the surfaces of electrical and electronic components, as well as jewelry and utensils made of silver or 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, causing it to discolor to a black color. In electronic components, this leads to an increase in electrical resistance and a decrease in conductivity. The silver discoloration preventive agent AC10A 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. AC-10A is a water-based solvent type silver discoloration preventive agent that is widely used in electrical and electronic components such as switch contacts that dislike water, connector contact points, and printed circuit boards.
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basic information
1. Pre-treatment AC-10A is a solvent-based silver discoloration preventive agent, so when treating with AC-10A, it is necessary to completely dry the surface of silver or silver-plated items. 2. Treatment Conditions The following are general standard treatment conditions. ◎ Usage Method: Immersion in AC-10A concentrate ◎ Temperature: Room temperature ◎ Time: 30 to 60 seconds ◎ Drying: After lifting, leave at room temperature or use air to volatilize the solvent. 3. Treatment Tank Use a tank made of stainless steel or synthetic resin such as polyethylene. 4. Reactivity of AC-10A AC-10A chemically reacts with the silver surface to form a very thin rust prevention film. This rust prevention film protects the silver surface from gases in the atmosphere (especially sulfide gases such as hydrogen sulfide and sulfur dioxide) and prevents discoloration. Cautions for Use ● Since the solvent volatilizes, keep the treatment tank covered when not in use. ● Do not add water to the treatment tank. ● Ensure good ventilation in the work area during treatment. ■ Packaging: 18 kg *For more details, please contact us.
Price range
P2
Delivery Time
P3
Applications/Examples of results
There are many achievements in preventing rust and discoloration of silver products, such as electrical and electronic components like connectors and LEDs for heavy electrical equipment.
Line up（1）
| Model number | overview |
|---|---|
| AC-10A | This is a hydrocarbon-based silver tarnish inhibitor. After immersion treatment, it dries as is and forms a thick protective film. It has the ability to strongly protect the silver surface from harmful atmospheric gas environments. It is used on LED contacts, switch contacts, connector terminals, printed circuit board terminals, and more. |
catalog（2）
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Company information
Asahi Co., Ltd. has been in operation since 1958, and we have always listened to our customers' requests and focused on researching and developing products that meet their needs. So far, we have released numerous products, including cleaning agents for kitchens, car shampoos and waxes for car wash machines, as well as copper and silver tarnish prevention agents. In recent years, there has been a growing demand for environmentally friendly chemicals, leading to an increase in requests for degreasers, cleaning agents, tarnish prevention agents for semiconductors, and high heat-resistant tarnish prevention agents that do not use strong acids or strong alkalis. Our products have traditionally been developed in response to such voices. Moving forward, we will continue to listen to various feedback and develop new products.