How fingernail polish can be used to waterproof circuit boards

[Danny]

Here is a link to a video that shows how to waterproof electronic PCBs. I have a few modules and voltmeters I am waterproofing that are not marine so I needed to waterproof them. I used clear fingernail polish as shown in this video.

 

[svetz]

Looks like this thread: Conformal Coatings (hydrophobic products)

 

[Danny]

Looks like this thread: Conformal Coatings (hydrophobic products)

Thanks. I missed it! I have been using the fingernail polish and it seems to be working.

 

[b.james]

I have also tried and approve of lanolin spray . Its alchohol thinned generally so spray on when the circuit board is turned off and leave for an hour to dry off . Seems to work great on boats but don't spray old lead type terminals as it can stop the contact altogether . Amazing really that it does that. I usually spray on some surface spray for insects after that and let dry too.

 

[StevAR]

That's a handy tip, thanks!

I use "metallic flake" nail polish as a thread lock on nuts and bolts. It works pretty good!