How long does it take for the circuit board to dry after being coated with three-conformal paint?
After the PCB circuit board is coated with three-conformal paint, it can effectively prevent moisture from damaging the circuit board. If the circuit board is eroded by moisture for a long time, it will greatly reduce the insulation resistance between conductors, accelerate high-speed decomposition, reduce the Q value, and corrode the conductor. Coating with three-conformal paint can effectively protect the performance of the circuit board, and also prevent the erosion of water vapor and oxygen. With the popularization of three-conformal paint on circuit boards in various fields, three-conformal paint is becoming more and more popular, but it also brings some technical problems to everyone. How long does it take for the circuit board to be coated with three-conformal paint?
UV curing is mainly reflected in UV conformal coating. The curing time is mainly related to the power of UV lamp, and the curing time is about 10s. Of course, some companies will also perform triple curing on the circuit board after UV curing - moisture curing. The specific curing time is related to the environment. Due to the surface oxygen resistance problem of UV glue coating, it is necessary to increase the light requirements to achieve the purpose of forced curing. Only by choosing the right conformal coating and the right curing method can you achieve twice the result with half the effort.
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