Conformal Coating Protection for PCBA

Conformal coating is a transparent protective layer formed on the surface of PCBA, with the core function of ensuring the long-term reliable operation of circuits in harsh environments. It effectively prevents moisture, corrosion, and salt spray, stopping short circuits, leakage, and chemical corrosion caused by humidity and pollutants. At the same time, it provides electrical insulation, avoiding high-voltage creepage due to conductive dust or condensation, and secures components, reducing the impact of vibration and shock. This barrier significantly enhances product durability, ensuring stable operation in demanding environments such as automotive, industrial, and outdoor electronics.

Conformal Coating Performance Grades

Application Scenarios

Nano Conformal Coating for Bluetooth PCBA

Advantages: Ultra-thin coating of 0.1-10 microns with low dielectric constant, causing minimal insertion loss for high-frequency signals like Bluetooth, Wi-Fi, and 5G; does not affect heat dissipation of high-density chips.

Silicone Conformal Coating for Plant LED Lights

Advantages: High transparency with light transmittance over 92%, minimal impact on LED color temperature. Yellowing resistance, maintains light transmission long-term. High temperature and humidity resistance, operates from -60°C to 200°C. Compatible with LED encapsulation胶, reducing chemical reactions that cause dead lights.

UV-Curable Conformal Coating for General PCBA

Advantages: Automated machine spraying, uniform thickness of 50um, selective area spraying, high hardness, strong toughness, excellent adhesion, scratch-resistant.

Polyurethane Conformal Coating for High Voltage Applications

Application: When a PCBA operates, instantaneous high voltage can cause localized circuit breakdown. Applying a thicker layer of conformal coating in that specific PCB area increases circuit resistance, preventing breakdown.

Professional Conformal Coating Solutions

Select the appropriate coating based on specific application requirements and environmental conditions to achieve optimal protection and reliability.