High Performance Coating Ultrasonic Technology For Circuit Board Protective Coated

Hangzhou Shengtu Technology Co., Ltd. is one of the leading manufacturers and suppliers of high performance coating ultrasonic technology for circuit board protective coated in China. Welcome to buy high quality customized products at low price from our factory. Contact us for more details.

 

 

 

High‑performance ultrasonic coating technology for circuit board protective coating is an advanced manufacturing process. It uses ultrasonic atomization to apply protective coatings onto electronic circuit boards with high precision, helping enhance circuit performance and production efficiency.

By adjusting amplitude and carrier gas, ultrasonic technology enables precise control over spray volume and coverage area. This allows protective and barrier coatings to form uniform, compact films on circuit substrates, effectively improving insulation, barrier performance, and resistance to environmental corrosion for electronic circuit boards.

 

 

 

Uncoated printed circuit boards exposed to humid air develop a thick adsorbed water‑molecule layer on their surface, which lowers the board's surface insulation resistance (SIR). Reduced surface insulation resistance degrades electrical‑signal transmission performance. Typical resulting issues include crosstalk, current leakage and signal dropout; in severe cases, permanent signal failure caused by short‑circuits may occur.

 

On uncoated printed circuit boards, this water film also creates favourable conditions for metal migration and corrosion, further compromising insulation strength and high‑frequency signal behaviour. Dust, grime and other airborne contaminants deposited on assembled boards readily absorb moisture and exacerbate these adverse effects. Conductive debris such as metal fragments can additionally create electrical bridging faults.

 

Conformal coating is a thin polymer film applied over printed circuit assemblies, typically 0.005 in thick, that acts as a barrier to keep dust and environmental contaminants away from the circuit hardware. However, conformal coating can trap residual contaminants left behind from incomplete pre‑cleaning. For this reason, thorough surface cleaning of circuit boards prior to coating application is critical.

 

 

 

1. Shields circuit boards from harsh ambient conditions and safeguards them against moisture erosion, bacterial corrosion, dust contamination and rust formation.

 

2. Prevents circuit board damage throughout production, assembly and service operations. It alleviates mechanical stress on electronic components and delivers reliable protection against thermal cycling impacts.

 

3. Minimizes component and board abrasion during long-term service.

 

4. The coating improves the insulation performance between conductive parts, effectively boosting the overall operational performance of circuit boards and enabling higher-density component layout.

 

 

 

 

 

 

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