The complete PCB electroplating process includes the post-treatment of electroplating. Broadly speaking, all electroplating is post-treated after it has been electroplated. The simplest post-treatment involves hot water cleaning and drying. And many coatings also require passivation, coloring, dyeing, sealing, painting and other post-processing, in order to make the coating performance better play and strengthen.

How to deal with PCB after electroplating

Post-plating treatment methods can be divided into the following 12 categories:

1, cleaning;

2, dry;

3, hydrogen removal;

4, polishing (mechanical polishing and electrochemical polishing);

5, passivation;

6, coloring;

7, dyeing;

8, closed;

9, protection;

10. Painting;

11, unqualified coating removal;

12, bath recovery.

According to the use or design purpose of metal or non-metal electroplating products, the subsequent treatment can be divided into three categories, namely to improve or enhance the protection, decorative and functional.

(1) Protective post-treatment

With the exception of chrome plating, all other protective coatings, when used as surface coatings, must be properly post-treated to maintain or enhance their protective properties. The most common post-treatment method is passivation. To protect the higher requirements for surface coating processing, for example, cover light coating processing, from environmental protection and cost considerations, can use water transparent coating.

(2) decorative post treatment

Decorative post – treatment is a common process in non – metal plating. For example, the plating of imitation gold, imitation silver, antique copper, brushing, coloring or dyeing and other artistic treatment. These treatments also require the surface to be coated with transparent coating. Sometimes use chromatic transparent coating even, for instance copy aureate, red, green, purple wait for color coating.

(3) Functional post-processing

Some non-metallic electroplating products are designed for functional needs, and some functional treatment is required after electroplating. For example, as the surface coating of magnetic shielding layer, as the surface solder coating of welding coating, etc.