Let's talk about the acid matte tin process

2025-11-19 08:17:28

The matte tin layer is also known as dark tin, gray tin and matte tin, etc. Because it has better solderability than bright tin (tin plating additives are required), and it has a good anti-corrosion protection ability against the alkaline etching solution of printed circuit boards, it is widely used in the solderability coating of electronic components and the alkaline etching protective layer of printed circuit boards.

The matte tin plating solution has excellent dispersion and coverage capabilities, contains no fluorine or lead, and its wastewater treatment is easy. The maintenance and control of the plating solution are simple, which is beneficial to environmental protection and is a clean production process.

To prevent the formation of tin whiskers in the pure tin layer, a small amount of other elements such as copper, silver, bismuth, cerium and antimony can be added to the tin plating solution.

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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 chemicals. As a fast growing electroplating chemicals supplier 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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