Ideal for materials that are weak against acids and alkalis! Weak alkaline copper plating solution.
Copper pyrophosphate plating solution / Additive CP-25
Piro copper has a weak alkaline nature with a pH of 8 to 9. It is close to neutral, so it has a minimal impact on the material.
This is a pyrophosphate copper plating solution with a weak alkaline pH of 8.6 to 8.9. Compared to strong acidic copper plating and strong alkaline cyanide copper plating, its pH is closer to neutral, and its low corrosiveness to materials is its greatest feature. It is suitable for plating on zinc die castings and materials that are weak against acids and alkalis, making its wide applicability a strength. It excels in uniform electrodeposition and leveling properties, allowing for a uniform glossy coating even on complex shapes. Being a no-cyanide bath that does not contain cyanides, it helps reduce wastewater treatment costs.
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basic information
【Bath pH】8.6–8.9 (Standard 8.8) / Weakly alkaline 【Processing temperature】55–60℃ 【Cathode current density】0.5–4.5 A/dm² 【Current efficiency】100% 【Agitation】Air agitation 【Anode】OHFC copper anode (electrolytic plates can also be used) 【Filtration】Continuous filtration 【Anode bag】Not required 【Comparison with other baths】 - Copper sulfate plating: Strongly acidic / Risk of material corrosion - Cyanide copper plating: Strongly alkaline / Cyanide wastewater treatment required - This product (Copper pyrophosphate): Weakly alkaline / No cyanide / Low risk of material corrosion
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Applications/Examples of results
【Applications】 - Plating on materials that are weak against acids and alkalis - Base copper plating for zinc die-cast parts - Plating to prevent carburizing and nitriding of steel components - Electroforming and thick plating - Plating of steel wire - Pre-treatment for decorative chrome and nickel plating - Through-hole plating for printed circuit boards 【For those with the following issues】 - The material is corroded by copper sulfate plating - Want to switch from cyanide baths to non-cyanide baths - Need uniform film thickness for products with complex shapes - There are applications for thick plating such as polishing and electroforming after plating
Company information
Murata Manufacturing Co., Ltd. aims to be a company trusted by customers and society through quality, technology, know-how, and services that are recognized worldwide. We strive daily to improve product quality to enhance customer satisfaction. Additionally, we fully recognize our social responsibility as a company handling chemical products and promote business activities that consider the protection and preservation of the global environment. We comply with relevant laws and regulations as well as other requirements in the design, manufacture, and sale of surface treatment agents and related products, establish an environmental management system, and work towards environmental conservation, continuous improvement of the environment, and pollution prevention.
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