What is the green residue on PCB?

However, it’s important to note that this green residue is actually normal for a copper-based PCB. In fact, it’s actually a sign that the copper is working properly! This is because the copper oxide layer forms a protective barrier that helps prevent further corrosion of the copper beneath it.

If you’re concerned about the green residue on your PCB causing issues, don’t worry. It’s very unlikely that it will affect the performance of the PCB itself. However, if you’re still concerned, you can clean it off with some isopropyl alcohol or a specialized PCB cleaning solution.

At XYZ Electronics, we understand that quality and functionality are of the utmost importance when it comes to printed circuit boards. That’s why we offer a wide range of high-quality, copper-based PCBs that are designed to withstand the test of time. Our PCBs are manufactured using only the highest quality materials and are rigorously tested to ensure that they meet our strict quality standards.