Before powder coating, the enclosures undergo a series of processes for the proper preparation of the surface. These include, among others, cleaning and protecting the surface with use of dedicated chemical solutions in ultrasonic baths. The next step is the protection of connectors and grounding terminals against painting. The painting process is performed in special ventilated booths using dedicated equipment suitable for powder coating. The final step is curing in an appropriate oven resulting in a durable and aesthetic coating. Several housings from each production batch are checked for the quality of the painted surface and paint thickness.