Discoloration prevention agent - Company Ranking(3 companyies in total)
Last Updated： Aggregation Period:Jul 16, 2025〜Aug 12, 2025
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Display Company Information
| Company Name | Featured Products | ||
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| Product Image, Product Name, Price Range | overview | Application/Performance example | |
| ■It is a neutral water-soluble agent. ■Simply immersing the product diluted with water at a ratio of 10 to 20 times will prevent oxidation for a long time and maintain a beautiful surface. ■Immersion temperature: Room temperature to 60°C (recommended 50 to 60°C) ■Immersion time: 30 seconds to 2 minutes (varies depending on immersion temperature). ■For copper products that have already discolored due to cutting oil or heat from machining, using a copper oxide film remover like CU-600 in conjunction will be even more effective. ■Please also use it to prevent discoloration after plating or barrel polishing. It is effective even if added simultaneously during barrel polishing. 【Usage Method】 Copper material → Degreasing → Rinsing → CU-600 → Rinsing → BT-8 → Rinsing → Drying Point 1… If the copper surface is not kept clean, unevenness will occur, leading to early discoloration due to an uneven rust prevention film. Point 2… If water droplets are left during the drying process, water marks will form, so make sure to thoroughly remove the droplets. *For more details, please contact us or download the catalog if desired. | Prevention of discoloration of copper materials and copper products. Primary rust prevention for copper-plated items. We have a lot of achievements in preventing the formation of oxide films (discoloration) on various copper materials and copper alloys. | ||
| ■ There is no flammability or combustibility as it is a water-based silver discoloration preventive agent. ■ After immersing silver products in AC-20, dry them without rinsing with water, which will form a thick protective film on the silver surface. ■ It has good solderability and is widely used in various electrical and electronic components. ■ Properties Appearance: Emulsifiable transparent to milky white liquid Specific gravity: 1.00±0.02 (25°C) Solvent: Water pH: 7.0±0.5 (concentrate) ■ Usage Instructions 1. Usage concentration: Use as is 2. Temperature: Room temperature to 30°C 3. Time: 1-2 minutes (In winter, if the concentrate becomes cloudy, heat to about 30°C to dissolve uniformly) 4. Drying: After lifting and draining, dry with room temperature air or warm air - Silver material → AGR-100 → rinse with water → AC-20 treatment → drying * A rust prevention film will not form if the surface is not clean. - Silver plating → rinse with water → AC-20 treatment → drying ■ Packaging: 18kg * For more details, please contact us or download the catalog. | There are many achievements in rust and discoloration prevention of silver products, such as electrical and electronic components like connectors and LEDs for heavy electrical equipment. | ||
| 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 features the ability to achieve coating treatment simply by immersion. ■ BT-5 forms a copper discoloration protective film. It is a standard product within the BT series. ■ The surface treated with this agent does not experience a decrease in electrical resistance. ■ It also has good adhesion to 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. ■ It is a neutral water-soluble agent. ■ Simply immersing in this agent diluted with water at a ratio of 10 to 20 times will prevent oxidation for a long time and maintain a beautiful surface. ■ Immersion temperature: Room temperature to 60°C (recommended 50-60°C) ■ Immersion time: 30 seconds to 2 minutes (varies depending on immersion temperature). ■ For copper products that have already discolored due to cutting oil or heat from machining, using a copper oxidation film remover like CU-600 in conjunction will be even more effective. ■ Please use it for preventing discoloration after plating or barrel polishing. It is also effective when added simultaneously during barrel polishing. | Prevention of discoloration of copper materials and copper processed products. Primary rust prevention for copper-plated items. We have a lot of achievements in preventing the formation of oxide films (discoloration) on various copper materials and copper alloys. 【Specifications】 ■Appearance: Colorless transparent liquid ■Specific gravity: 0.95 ■pH: Neutral 【Usage Instructions】 Copper material → Degreasing → Water wash → CU-600 → Water wash → BT-5 → Water wash → Drying Point 1: If the copper surface is not kept clean, unevenness will occur, leading to early discoloration due to an inconsistent rust prevention film. Point 2: If water droplets are left during the drying process, water marks will form, so be sure to thoroughly remove any water droplets. | ||
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- Featured Products
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Copper discoloration prevention agent "BT-8" (hydrophilic)
- overview
- ■It is a neutral water-soluble agent. ■Simply immersing the product diluted with water at a ratio of 10 to 20 times will prevent oxidation for a long time and maintain a beautiful surface. ■Immersion temperature: Room temperature to 60°C (recommended 50 to 60°C) ■Immersion time: 30 seconds to 2 minutes (varies depending on immersion temperature). ■For copper products that have already discolored due to cutting oil or heat from machining, using a copper oxide film remover like CU-600 in conjunction will be even more effective. ■Please also use it to prevent discoloration after plating or barrel polishing. It is effective even if added simultaneously during barrel polishing. 【Usage Method】 Copper material → Degreasing → Rinsing → CU-600 → Rinsing → BT-8 → Rinsing → Drying Point 1… If the copper surface is not kept clean, unevenness will occur, leading to early discoloration due to an uneven rust prevention film. Point 2… If water droplets are left during the drying process, water marks will form, so make sure to thoroughly remove the droplets. *For more details, please contact us or download the catalog if desired.
- Application/Performance example
- Prevention of discoloration of copper materials and copper products. Primary rust prevention for copper-plated items. We have a lot of achievements in preventing the formation of oxide films (discoloration) on various copper materials and copper alloys.
Silver tarnish inhibitor AC-20 (sulfur-based rust inhibitor)
- overview
- ■ There is no flammability or combustibility as it is a water-based silver discoloration preventive agent. ■ After immersing silver products in AC-20, dry them without rinsing with water, which will form a thick protective film on the silver surface. ■ It has good solderability and is widely used in various electrical and electronic components. ■ Properties Appearance: Emulsifiable transparent to milky white liquid Specific gravity: 1.00±0.02 (25°C) Solvent: Water pH: 7.0±0.5 (concentrate) ■ Usage Instructions 1. Usage concentration: Use as is 2. Temperature: Room temperature to 30°C 3. Time: 1-2 minutes (In winter, if the concentrate becomes cloudy, heat to about 30°C to dissolve uniformly) 4. Drying: After lifting and draining, dry with room temperature air or warm air - Silver material → AGR-100 → rinse with water → AC-20 treatment → drying * A rust prevention film will not form if the surface is not clean. - Silver plating → rinse with water → AC-20 treatment → drying ■ Packaging: 18kg * For more details, please contact us or download the catalog.
- Application/Performance example
- There are many achievements in rust and discoloration prevention of silver products, such as electrical and electronic components like connectors and LEDs for heavy electrical equipment.
Copper discoloration prevention agent "BT-5" 4ℓ (hydrophobic)
- overview
- 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 features the ability to achieve coating treatment simply by immersion. ■ BT-5 forms a copper discoloration protective film. It is a standard product within the BT series. ■ The surface treated with this agent does not experience a decrease in electrical resistance. ■ It also has good adhesion to 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. ■ It is a neutral water-soluble agent. ■ Simply immersing in this agent diluted with water at a ratio of 10 to 20 times will prevent oxidation for a long time and maintain a beautiful surface. ■ Immersion temperature: Room temperature to 60°C (recommended 50-60°C) ■ Immersion time: 30 seconds to 2 minutes (varies depending on immersion temperature). ■ For copper products that have already discolored due to cutting oil or heat from machining, using a copper oxidation film remover like CU-600 in conjunction will be even more effective. ■ Please use it for preventing discoloration after plating or barrel polishing. It is also effective when added simultaneously during barrel polishing.
- Application/Performance example
- Prevention of discoloration of copper materials and copper processed products. Primary rust prevention for copper-plated items. We have a lot of achievements in preventing the formation of oxide films (discoloration) on various copper materials and copper alloys. 【Specifications】 ■Appearance: Colorless transparent liquid ■Specific gravity: 0.95 ■pH: Neutral 【Usage Instructions】 Copper material → Degreasing → Water wash → CU-600 → Water wash → BT-5 → Water wash → Drying Point 1: If the copper surface is not kept clean, unevenness will occur, leading to early discoloration due to an inconsistent rust prevention film. Point 2: If water droplets are left during the drying process, water marks will form, so be sure to thoroughly remove any water droplets.
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