Protection

You may want to add what’s called a “conformal coating” to the connections to keep dust and moisture away. This is basically a clear coating that conforms to the surface of your parts, and there are many different kinds. In some military applications, they actually embed circuits in a solid chunk of epoxy or silicone to safeguard them. Note that if the circuit needs to be repaired, these coatings can be very difficult to remove.

Various encapsulation materials

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CuriousInventor launched in late 2006 (pre-arduino era!) as a place to enable hobbyists, students, and musicians to create their own technology. We sold open-source kits and tools, and offered numerous guides & videos on things like soldering, metal working, screws, electronics, and more. 

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