What Are Conformal Coatings?

Conformal coating is a protective, breathable coating of thin polymeric film applied to printed circuit boards (PCBs).

A conformal coating is a thin polymeric film applied to a printed circuit board (PCB) in order to protect the board and its components from the environment and corrosion. The film is typically applied at 25-250µm and ‘conforms’ to the shape of the board and its components, covering and protecting solder joints, the leads of electronic components, exposed traces, and other metallised areas from corrosion, ultimately extending the working life of the PCB.

Conformal coatings are a breathable protective layer that will protect against the environment the PCA is exposed to by filtering out the airborne contaminants and maintaining long-term surface insulation resistance but will also allow any moisture trapped in the circuit board to escape. Usually we can use for:

• Aerospace
• Automotive, including Hybrid and EV
• Industrial Controls
• White Goods
• Telecoms
• Energy both Traditional and Renewable