Conformal Coatings Guide and Overview

This article is based on an original publication by Chemtronics.

Engineered to protect circuit boards and other electronic components from adverse environmental conditions, conformal coatings adhere to irregular surfaces to ensure dielectric resistance and operation integrity.

Conformal Coating Resin Types

There are five main categories of conformal coatings:

  • AR - Acrylic Resin
  • SR - Silicone Resin
  • UR - Polyurethane (Urethane) Resin
  • ER - Epoxy Resin
  • XY - Parylene



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