Take your conformal coating out of the dark and avoid shadowing effects

Shadowing is where correct conformal coating coverage is not achieved on a section of a board due to a component or part of the board blocking another area of the circuit board.

This can occur when coating is applied by spray method to a circuit board. This can easily occur with 3D components and tall components.

conformal coating shadowing effects
Shadow effects can occur around tall components

Click to find out more about the causes of shadowing in conformal coating and how to stop shadowing problems.