Why mostly PCB is Green Solder Mask

PCB have a usually green coating called solder mask. The main purpose is to protect the cooper layer from corrosion and to provide good insulation.

1. Green color has been a standard clor of the PCB industry.

2. Green color can relieve visual fatigue during the inspections

3. Green solder mask is physically superior.

4. The paint procurement costs relative to other colors and lower and many companies produce green oil large quanities.

Nowadays, PCB is available in many different colors, black, red, blue, purple , yellow and others.