Three-proof paint production line

Three -proof paint is a protective coating applied to printed circuit board assemblies(PCBAs).

to resist three common environmental factors:

moisture, dust, and corrosion.

It is also cometimes known as the conformal coating.

Three-proof paint is a sepcialized material, such as silicone, acrylic,or urethane.

The coating is usually applied using techniques like spraying, dipping, or brushing,and it forms a thin, transparent layer over the PCB components without interfering with their functionality.