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Conformal Coating

1Turnkey box buildPrinted circuit boards (PCBs) are widely used in many industry area, and some of them are exposed to different work environments, such as environmental hazards such as chemicals, moisture, fungus, dust, moisture,pressure and temperature fluctuations, and vibrations. All these factors may have a severe impact on PCBs and affect their performance. 
To avoid this, PCBs need to be by fully or partially covered by some material to avoid damage and extend the usage life. The coating material can be Silicones, Acrylic, Parylene, Epoxy Coating, Polyurethane Coating and Thin Film/Nano Coatings.
We can apply the following kinds of conformal coating application methods: 

Manual Spraying
In this technique, the coating is applied using a handheld spray gun or an aerosol can. Our experts generally employ this technique for low-volume production or prototypes. Some times a fixture is needed if customer need a few components uncovered. 

Automated Spraying
Automacted sraying are used to ensure consistency. An automated spray system or a programmed system is used to apply the coating. This spray system is positioned on a conveyor and feature a spray head, which applies the coating on the PCB that comes before it.

The component is dipped horizontally, vertically, or at an angle to produce complete coverage. The board can be automatically or manually dipped to assure a consistent coating.
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