A protective film is formed on the silver surface of large components, maintaining gloss for a long time. It 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 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 are generated on the silver surface, causing it to appear blackened. In electronic components, this results in increased electrical resistance and decreased conductivity. The silver discoloration preventive agent AC-10B forms a stronger coating on the silver surface compared to AC-10A, protecting it from sulfur gases such as hydrogen sulfide and sulfur dioxide. Additionally, the protective film has good solderability and low electrical contact resistance. AC-10B has been developed for large electrical components. When applied to small components compared to AC-10A, it may result in a sticky surface. AC-10B is a water-based solvent type silver discoloration preventive agent.
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basic information
1. Pre-treatment AC-10B is a solvent-based silver discoloration preventive agent, so when treating with AC-10B, it is necessary to completely dry the surface of the silver or silver-plated item. 2. Treatment Conditions The following are general standard treatment conditions. ◎ Usage Method: Immersion in AC-10B 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-10B AC-10B chemically reacts with the silver surface to form a very thin anti-rust film. This anti-rust 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 rust and discoloration prevention for silver products used in heavy electrical components.
Line up（1）
| Model number | overview |
|---|---|
| AC-10B | 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 for large electrical components such as heavy electrical parts. |
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Company information
Asahi Corporation has been listening to our customers' requests and striving to develop products that meet their needs since our founding in 1958. So far, we have released a variety of products, including cleaning agents for kitchen areas, 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 been developed in response to such voices from the beginning. We will continue to listen to a variety of feedback and develop new products.