Waterproofing PCB

Because we are using water immersion to cool and protect batteries and speed controllers, they all need to be waterproofed. Even motor windings need to be water proofed as well.

This video shows that it all can be done, even with ESC, the most difficult. With ESC, we need to use shrink wrap firsts to ensure there is no heat barrier. Epoxy cannot be used because it will stop heat from escaping.

His trick is to use Corrosion X for normal use, Corrosion X HD for servos.


 

 

Conformal Coating is recommended by this Youtuber but he discusses cheaper methods for DIY also.

To be safe, always use Silicon conformal coating because it withstands heat and conducts heat better than others. Epoxy is for strength and also used in solder masks.


 Silicon Conformal Coating Still Not Good Enough

Need the epoxy method.

Silicon is good enough


 

https://shopee.com.my/Conformal-Coating-PCB-board-insulating-varnish-transparent-fang-chao-you-environmental-protection-dry-waterproof-enamele-i.327823568.5862109763

 

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