What application methods are available for applying conformal coating?

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Conformal coatings can be applied to printed circuit board assemblies in many different ways in the production environment.

Listed below are the common methods of applying the conformal coating materials.

  • Brushing
  • Aerosol Spray
  • Batch Spray
  • Selective Spray
  • Dipping
  • Vapor Deposition

 The first five methods apply to the liquid conformal coatings. These are coatings like the acrylic, urethane, silicone and fluoropolymer materials.

The final method, vapor deposition, is for the application of Parylene, and is a completely different process method.


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