CuproShield Cu-56

Introduction

CuproShield Cu-56 is a water-soluble copper protective agent that can prevent surface oxidation on chemical copper plating, electroplating copper, or other copper and copper alloys. The protective film formed by CuproShield Cu-56 is colorless and transparent, which can greatly improve the anti-corrosion ability of the copper surface after application. CuproShield Cu-56 does not contain chromate, so it will not cause pollution to the environment. It is also economical to use.
CuproShield Cu-56 can be used in the final water wash after copper plating to maintain the fresh color of the copper surface without oxidation. The copper surface treated with CuproShield Cu-56 does not need to be washed with water afterwards.
The CuproShield Cu-56 protective layer can be easily removed by acidic or alkaline degreasers. After degreasing and cleaning, the CuproShield Cu-56 protective film can be completely removed by acid washing. Subsequent electroplating operations can then be carried out.

Operating Conditions

Operating Method

The immersion of the workpiece in the CuproShield Cu-56 solution is the final process before drying. After CuproShield Cu-56 treatment, there is no need for water washing, which does notaffect the formed protective film. To accelerate drying, CuproShield Cu-56 solution can be used at high temperatures between 40-60℃.
The workpiece must be clean, moist, and free of oil stains before entering the CuproShield Cu-56 solution. As CuproShield Cu-56 does not have a cleaning function, a protective film will not form on surfaces with stains. If the process before entering the CuproShield Cu-56 solution is acidic, care must be taken during production to prevent the introduction of too much acidic liquid surface from affecting the treatment effect of CuproShield Cu-56. If the pH falls below 3.0, CuproShield Cu-56 cannot be used normally.

Equipment

The CuproShield Cu-56 solution must be stored in stainless steel, fiberglass, plastic, PVC lined steel, PE, or PP tanks. If a steel groove is used, it will rust and affect the formation of the CuproShield Cu-56 protective film. The heater can be made of quartz, stainless steel, or Teflon material. It is recommended to equip the production line with an exhaust system.

Control and Maintenance

CuproShield Cu-56 generally does not require a predetermined solution replacement per liter of processed area. If the workpiece is prone to oxidation, this may indicate that the effective components of the solution are low or contaminated, and thus must be replaced. Analytical methods can be provided if necessary.

Waste Liquid Treatment

CuproShield Cu-56 contains organic compounds dissolved in methanol and water, as well as metals after use. It must be treated according to local standards when discharged.

Disclaimer

All proposals or suggestions regarding our company's products in this manual are based on experiments and data that our company trusts. Due to the inability to control the actual operations of other practitioners, our company cannot guarantee or be responsible for any adverse consequences.