In the custom printed circuit boards, copper substrate used to interconnect components, although it is a good conductor material forming PCB circuit board conductive path pattern, but if long time exposure in the air, is also very easy to lose luster due to oxidation, corrosion and loss due to welding.

Therefore, must use a variety of techniques to protect the copper wire, vias and plated through holes, these techniques include organic coating, film and electroplating technology.

We can also supply the high quality gold plated PCB, aluminum board PCB etc. If you need, welcome to contact us.