Copper plating is a fundamental step in many electroplating applications, serving as an intermediate coating to enhance adhesion, Corrosion Resistance, and electrical conductivity. Traditionally, copper plating relied heavily on cyanide-based Solutions, which pose significant environmental and safety hazards.
The FH-105 Non-Cyanide Alkaline Copper Plating Process eliminates cyanide from the formula while maintaining superior plating quality. This process is engineered with innovative additives, stable bath composition, and precise plating control. It allows manufacturers to achieve consistent and high-quality copper deposits without compromising worker safety or environmental protection.
FH-105 is compatible with automatic production lines, barrel plating, rack plating, and selective plating processes, making it versatile for small-scale workshops as well as large industrial plants.
1, this process coating is delicate and dense, the potential difference between high and low potential is very small and uniform and bright.
2、The current density range is wide, and the coverage is excellent.
3、High tolerance for organic or inorganic impurities, easy to control.
4、Suitable for iron、copper, bronze and other different substrates of workpieces, especially suitable for zinc alloy castings.
5、The original cyanide tank can be directly transferred to the tank,no need to open a new tank.
FilteringContinuous filtering (4—8cycles/hr)
IV. Plating Solution Preparation:
1、Add two-thirds of the water to the tank, heat to 50℃.
2、Add FH-105 conductive salt to the calculation amount to dissolve completely.
3, add cupric cyanide (previously dissolved in water to a paste), stir vigorously until completely dissolved.
4, add 2 g/l of activated carbon, stir continuously for about 1 hour and then let stand, filter to clarify.
5、After adding the calculated additive, low current electrolysis for a few hours with a wavy stainless steel plate can be tried.
LightFH-105A Brightener 180—200ml/KAH
Chelating agent FH-105B 250-300ml/KAH
FiveDip solution maintenance:
1、FH-105D conductive rod salt mainly plays the role of complexing copper, the same as sodium cyanide, which can dissolve copper plates, and the solution plays the role of conductivity. Below 3 g/L of sodium cyanide, low current area will produce white mist; free sodium cyanide above 20g/L, low cathode current efficiency, and at the same time, a large amount of gas will be produced at the cathode. Therefore, the value of free sodium cyanide depends on the content of copper.
2、FH-105T copper salt, supplement the free copper in the plating solution, too low copper salt walking is not good, too high copper salt, the plating solution turns green, walking is poor according to the opening tank ratio and conductive salt to supplement copper salt.
3、FH-105A developer, increase breadth, developer too little, workpiece not bright, developer too much affects the walk.
4, FH-105B complexing agent plays a role in complexing plating, making the plating more delicate.
The FH-105 Non-Cyanide Alkaline Copper Plating Process is widely used in:
Electronics Industry: PCB connectors, switches, and circuit components requiring conductive copper layers.
Automotive Industry: Decorative and functional copper coatings for trims, fasteners, and precision parts.
Hardware Manufacturing: Handles, locks, tools, and household items requiring bright and durable copper finish.
Jewelry & Decorative Items: Produces shiny and attractive copper coatings on ornaments and accessories.
Aerospace & Aviation: Used as an intermediate layer in multi-metal protective plating systems.
Medical Equipment: Ensures corrosion-resistant coatings for stainless steel instruments.
Fault phenomenon | Processing method |
The plating is not bright over a wide range. | 1、FH-105DConductive salt is high, add FH-105T copper salt 2、Insufficient copper content in metal, supplement with FH-105T copper salt 3、Increase the area of the anode |
The low current density area of the plating is not bright | 1、FH-105DConductive salt base, supplement FH-105D conductive salt 2、Supplement FH-105 photosensitive agent, FH-105B complexing agent |
Insufficient brightness of plating | 1、Supplementary FH-105A Brightener 2、Adjust the composition of the plating solution, add FH-105T copper salt 3、Low current electrolytic treatment or activated carbon treatment |
The copper salt in the plating solution decreases quickly | 1、Increase the area of the copper anode 2、Adjust the PH value of the slot solution and the main salt ratio |
Appearance of burrs, pinholes, etc. | 1、Supplementary FH-105A Brightener 2、Excessive copper content in metal, supplement FH-105D conductive salt 3、Filtering mixing with insoluble impurities |
Current efficiency is too low | 1、FH-105DConductive salt is too high, add FH-105T copper salt 2、FH-105TCopper salt too low, supplement FH-105T copper salt 3、Plating solution impurities are too high, add carbon powder treatment |
Q1: What is the main advantage of FH-105 compared to traditional cyanide copper plating?
A1: FH-105 is completely cyanide-free, making it safer for operators, Environmentally Friendly, and compliant with global green manufacturing standards, while still offering excellent adhesion and brightness.
Q2: Does FH-105 provide good adhesion for subsequent plating layers?
A2: Yes, FH-105 is designed to act as an intermediate layer, providing strong bonding for nickel, chromium, silver, or gold plating.
Q3: Can FH-105 be used for both barrel plating and rack plating?
A3: Absolutely. FH-105 is highly versatile and suitable for both processes, ensuring uniform coating on different types of substrates.
Q4: How does FH-105 perform on complex-shaped components?
A4: With high throwing power, FH-105 achieves consistent thickness even in recessed areas and detailed parts.
Q5: What base materials are compatible with FH-105?
A5: FH-105 works effectively on steel, brass, zinc die-cast, and other metallic substrates.
Q6: Is FH-105 suitable for high-volume industrial production?
A6: Yes, FH-105 is engineered for both small-scale workshops and fully automated industrial plating lines.
Q7: What safety precautions should be followed when using FH-105?
A7: Although cyanide-free, standard chemical handling procedures apply. Operators should wear protective gloves, goggles, and ensure proper ventilation.
FH-105DConductive Salt 25kg/barrel
FH-105TCopper Salt 25kg/barrel
FH-105ALight Agent 25kg/barrel
FH-105BChelating agent 25kg/barrel
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