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Conformal coating is a protective, breathable coating of thin polymeric film applied to printed circuit boards (PCBs). Conformal coatings are typically applied at 25–250 μm to the electronic circuitry and provide protection against moisture and other harsher conditions. Coatings can be applied in a number of ways, including brushing, spraying, dispensing, and dip coating. A number of materials can be used as conformal coatings, such as acrylics , silicones , urethanes and parylene . Each has it
Environmental Protection: Conformal coatings provide a barrier against environmental elements such as moisture, dust, dirt, and chemicals. This protection is crucial in applications where electronic components are exposed to harsh conditions.
Insulation: Conformal coatings serve as insulating layers, preventing electrical short circuits and interference. They help maintain the electrical integrity of the circuitry by isolating components from each other and from the environment.