Shanglin Science and Technology

Which components cannot be painted with three-proof paint?

At present, electronic manufacturers are popular to brush moisture-proof oil on circuit boards. The protection of three-proof paint on circuit boards is warmly sought after by everyone, but they cannot blindly follow suit, because some components on circuit boards cannot be painted with three-proof paint, otherwise it will cause circuit boards to be defective. Let's list which electronic components cannot be painted with three-proof paint:

1. Areas that need electrical connection, such as gold pads, gold fingers, metal through holes, test holes, etc;

2. Battery and battery fixing frame;

3. Connector;

4. Fuse and case;

5. Heat dissipation device;

6. Jumper wire;

7. Lenses of optical devices;

8. Potentiometer;

9. Sensors;

10. No sealed switch;

11. Other areas that will be affected by the coating performance or operation, such as inductive components, are likely to affect the electrical properties after coating the three-proof paint, and must be tested in advance.

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