What are the factors that affect the appearance of the electroless nickel plating layer?

2026-01-10 09:07:40

When using the electroless nickel plating solution, which factors will affect the appearance quality of the coating?

1. Deposition rate

Generally, the faster the deposition speed, the higher the brightness. However, this effect is not obvious when the deposition speed exceeds 24 pm/h. Moreover, the higher the deposition speed, the easier the plating solution decomposes. The key lies in choosing the appropriate electroless nickel plating solution to balance the plating speed and the brightness of the coating layer.

2. Coating thickness

When the thickness of the electroless nickel plating layer is below 20 μm, the thicker the layer, the better the brightness. However, when the thickness of the plating layer exceeds 20 μm, as the thickness increases, the improvement in brightness becomes less and less obvious. Additionally, the thicker the layer, the more likely it is to have pinholes and pockmarks. Bigely has the electroless thick nickel plating process Ni-842 that can solve such problems.

3. The original roughness of the surface of the plated part

Regardless of whether the substrate is metal or non-metal, if the surface roughness of the substrate itself is low, then the glossiness of the coating will be higher.

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Guangdong Bigely Technology Co., Ltd. ,founded in 2003, is a high-tech enterprise integrating R & D,production, sales and service, specializing in the production of electroplating additives. As a famous electroplating additives source manufacturer in China, Bigely has over 20 years' experience in electroplating additives production and own production base of 5000 square meters. We can produce 15,000 tons of electroplating additives every year, which can fully meet the needs of customers.

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