Conformal coatings for PCB circuit boards can be made of a variety of materials. The following are the most commonly used materials in conformal coatings:
Epoxy resin
Silicone
Urethane
Acrylic fiber
P-xylene
How is conformal coating done? Conformal coatings can be applied in the following different ways to protect PCB boards from potential damage:
Impregnation: This is used for materials that require a longer time to cure.
Selective robotic coating: By using the appropriate dispensing head, all coating types can be used for selective robotic coating.
Spraying: Spraying can be used to apply the coating. Use a hand sprayer for coating. For this, use a spray booth or aerosol can.
Brushing teeth: This technique can only be performed by experts and technicians.
Therefore, this explains the importance, characteristics and process of applying conformal coatings. This type of coating is sufficient to protect the PCB circuit board, eliminating the concerns about high-precision circuit boards and complex boards. The circuit board manufacturer will give corresponding suggestions in the manufacturing process according to the customer's needs and cost tolerance.
