Last time, we discussed the general requirements necessary to open a conformal coating facility. Now I will discuss the equipment that is required in order to have a properly operating facility.
Parylene Coating Blog by Diamond-MT
One potential issue with considering selective conformal coating with a robotic conformal coating system is misaligned components on the PCB which can potentially damage the spray heads which are moving along a set pattern on the board and the components themselves be damaged as they travel. Spray heads are one of the most critical parts on the spray robot. Repairing damage can get costly.
Technology varies between the platforms and the valves but essentially they achieve the same result. The goal is to deposit coating where you want it, removing the issue of masking which is required in batch processing with dip or spray booths.
Depending on your application, choosing to use conformal coating equipment can be a very wise choice for maximum efficiency. I would recommend use of the conformal coating process decision worksheet to determine your coating needs and whether you should outsource conformal coating prior to purchasing a machine.