The immersion coating method in the operation of three-proof paint has been widely used, suitable for situations requiring complete coverage; in terms of coating effect, immersion coating is one of the more effective methods.

The key points of the immersion coating method are:

Ensure that solvents are continuously monitored with a hydrometer to maintain proper ratios; control the immersion and extraction speeds. This will achieve satisfactory coating thickness and reduce defects such as bubbles; it should be performed in a clean and

Operate under controlled temperature/humidity conditions.

Cautionary Notes for Immersion Coating Method:

PCB components or components should be vertically immersed in the paint trough.

Do not immerse connectors unless properly covered; the circuit board or components should be immersed for 1 minute until bubbles disappear, then slowly removed.

A uniform film forms on the surface of the PCB. Most of the paint residue should be allowed to flow back from the PCB into the immersion coating machine.

Do not immerse PCBs or components too quickly to avoid excessive bubble formation.

After dipping and coating, if there is a skin formation on the surface upon reuse, remove the skin and it can be used again.