Learn about conformal coating materials and application methods.
Introduction to Conformal Coating
Conformal coatings protect PCBs and electronic assemblies against moisture, contaminants, and environmental stresses. The market exceeds $1.2 billion annually.
Conformal Coating Materials
Acrylic coatings offer good moisture resistance and easy reworkability. Urethane provides excellent chemical resistance. Silicone offers excellent high-temperature performance.
Application Methods
Dipping provides complete coverage but no selectivity. Spraying offers good coverage with selective areas. Selective coating provides precision with high equipment cost.
| Method | Advantages |
|---|---|
| Dipping | Complete coverage |
| Spraying | Selective areas |
Frequently Asked Questions
What thickness should coating be applied?
Typical thicknesses range from 25-75 microns depending on requirements.
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