Copper discoloration prevention agent "BT-5" 4ℓ (hydrophobic)

basic information

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.

Price range

Delivery Time

P2

Applications/Examples of results

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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