Pre treatment of UV moisture proof paint application

2021-07-15 2337

UV moisture three proof paint is applied to products such as circuit boards, and after curing, a protective film is formed to protect circuit boards and related electronic components from environmental erosion, improving the stability and service life of normal operation of circuit boards and related electronic components. But if the application is not standardized, the performance of UV three proof paint will be greatly reduced, especially for some small details that need special attention when applying glue.

It is important to perform surface treatment on the PCB board before applying UV three proof paint. If the PCB board is too wet or the board surface is not clean, it is easy for many small bubbles and some white spots to appear on the board after using the three proof paint. After this situation occurs, many users will feel that it is a quality issue with the three proof paint, but if they spend time and effort looking for a better three proof paint, the result will still be the same after use.

1. PCB boards must be washed clean with board washing water and alcohol cannot be used.

2. The cleaned board can be placed in the oven for drying, and the PCB board can only be coated with three proof paint after it is completely dry.

When spraying or brushing UV three proof paint, it is important to ensure that the paint surface is even.

4. UV moisture three proof paint is cured by UV irradiation after gluing, and some gaps can be placed to wait for moisture to cure again. Therefore, after UV curing, try to protect the paint surface from damage as much as possible to avoid affecting the integrity of the paint surface.