Copper tarnish inhibitor - List of Manufacturers, Suppliers, Companies and Products

Copper tarnish inhibitor Product List

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Copper discoloration preventive agent "BT-14" (hydrophobic)

Copper discoloration preventive agent "BT-14" (hydrophobic)

"Heat-resistant copper discoloration inhibitor" prevents self-oxidation of copper due to high temperatures. It is a water-soluble copper discoloration inhibitor that further enhances the heat resistance of BT-8.

We previously commercialized BT-8 as a heat-resistant discoloration preventive agent, but in response to the demands of our customers, we have developed BT-14, which has further improved heat resistance and the following features. The heat resistance is enhanced compared to BT-8, and it can be used at an acidic pH of 2 to 3. 【Features】 ■ Organic substances form complexes with copper, protecting the copper surface from oxidation. ■ Since preventing discoloration of copper often requires high-temperature heat resistance, we offer a heat-resistant discoloration preventive agent suitable for high temperatures. ■ The concentrate can be diluted from 20 times to 10 times for use, making it cost-effective. ■ Treatment at room temperature is also possible. For optimal performance in a short time, we recommend a treatment temperature of 50 to 60°C.

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Copper discoloration inhibitor "BT-8" (hydrophilic)

Copper discoloration inhibitor "BT-8" (hydrophilic)

Are you struggling with the discoloration of copper? ASAHI's BT series protects copper from discoloration due to oxidation.

This is a water-soluble copper discoloration inhibitor that forms a complex of copper and organic substances on the copper surface, preventing oxidation and long-term discoloration. It has the characteristic of achieving coating treatment through immersion alone. ■ BT-8 forms a heat-resistant copper discoloration protective film (oxidation prevention film). ■ The heat resistance time varies with temperature (e.g., 180°C for 20 minutes). ■ The surface treated with this agent does not experience a decrease in electrical resistance. ■ BT-8 has high hydrophilicity and good adhesion with water-based paints, reducing the rate of defects. 【Specifications】 ■ Appearance: Colorless to pale yellow transparent liquid ■ Specific gravity: 1.0 ■ pH: Neutral

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Copper discoloration inhibitor "BT-7" (hydrophobic)

Copper discoloration inhibitor "BT-7" (hydrophobic)

Prevents self-oxidation of copper due to high temperatures.

The copper discoloration inhibitor "BT-7" forms a heat-resistant acidic compound on the surface of copper, preventing self-oxidation of copper due to high temperatures. It is a highly specific copper discoloration inhibitor that allows for easy formation of a coating through immersion treatment. 【Features】 ■ Organic substances form complexes with copper, protecting the copper surface from oxidation. ■ Since preventing copper discoloration often requires high-temperature resistance, we offer a high-temperature resistant discoloration inhibitor. ■ The pH of the discoloration inhibitor is neutral (except for BT-14). ■ The concentrate can be diluted from 20 times to 10 times for use, making it cost-effective. ■ Treatment at room temperature is also possible. For optimal performance in a short time, a treatment temperature of 50-60°C is recommended. 【Specifications】 ■ Appearance: Pale yellow transparent liquid ■ Specific gravity: 0.95 ■ pH: Neutral For more details, please contact us or download the catalog.

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Copper discoloration prevention agent "BT-5"

Copper discoloration prevention agent "BT-5"

Are you struggling with the discoloration of copper? ASAHI's BT series protects copper from discoloration due to oxidation.

This is a water-soluble copper discoloration inhibitor that forms a complex of copper and organic substances on the copper surface, preventing oxidation and long-term discoloration. It has the characteristic of achieving coating treatment through immersion only. 【Specifications】 ■Appearance: Colorless transparent liquid ■Specific gravity: 0.95 ■pH: Neutral ■BT-5 forms a copper discoloration protective film. It is a standard product among the BT series. ■The surface treated with this agent does not experience a decrease in electrical resistance. ■It also has good adhesion with paints, reducing the rate of defects. ■The discoloration prevention film treated with BT-5 on the copper surface is very strong at low temperatures below 40-50°C, completely preventing discoloration. However, as the temperature rises, the discoloration prevention film is destroyed, and its ability to prevent discoloration decreases.

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Copper discoloration inhibitor "BT-5" 4ℓ (hydrophobic)

Copper discoloration inhibitor "BT-5" 4ℓ (hydrophobic)

In response to many requests, we have added a 4L size of the copper discoloration inhibitor.

"I want to buy it, but 18L is too much." "I want a small amount considering storage." "I want to use it for testing, so a one-kan can is too much." We have received numerous requests like these. In response to these requests, we have added a 4L size for the copper discoloration preventives BT-5, BT-7, and BT-8. We have long received feedback on this product, such as: "It is very useful because it can remove oil stains and oxidation films from dirty copper that has gotten oil or glove marks after machining and bending, allowing us to deliver it in its original copper color." "Even though I removed the discoloration from the copper, it would quickly turn red again, but by using BT-5, it no longer discolors." Please take advantage of the newly convenient and easily purchasable 4L size.

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