Hi

I live in Norway and we have a lot of snow and rain during the winter. Since I'm building my first quad I recon' there will be some crashes  and the FB and PDB will get in touch with some wet elements.

How do you protect the electronics?
Cling wrap?
Big heat shrink?
DIY box?
??

I have heat shrinked the ESC, but is it also OK to put some hot glue in both open ends?

I spray my PCBs with PLASTIK 70.

I would do it like this guy:



I've been flying in snow, but i'm a cautious pilot, hardly ever risking anything.
So far condensating water (when going back into warm room) and cold batteries have been the biggest issues.

EDIT: Oh, forgot condensating in the goggles. Sad if your view goes foggy after half the battery. Fatshark vent helps.

Fast and good tips. Looks like cling wrap takes some beating

When you said PLASTIK 70, I remember that I have Plastidip spray and liqued. That my also do the trick...
http://www.plastidip.co.uk/product/regular-can-400ml

Thank's

PLASTIK 70 is different, you can solder through if necessary...

MG Chemical Silicone conformal coating allows to solder through as well.
PLASTIK-70 is just an acrylic conformal coating lacquer, I strongly advise against using it on anything that gets as hot as the ESCs. The best conformal coating for ESCs is silicone.
And definitely don't use PlastiDip or other liquid electrical tape on them as well as it prevents heat transfer.

Today I have heat shrink around the ESC as it looks like that's the way to do it. But they are open in both end.
1 - Is this OK with the opening at each end for cooling
2 - Could this end be sealed with hot glue(gun)

I seal the ends either with long-cure epoxy or hot-glue. Hot glue does not adhere to silicone heatshrink well, so it will prevent from splashes but not submerging. If I want to submerge ESCs - I use epoxy.

I dipped everything in Plasti dip, even the escs. They are always cold when I land, so I'm not to worried about heat. If they burn it isn't a big loss anyway as they are just some old littlebees. The downside with plastic dip imo is that it acts like a skin, and there is a possibility to trap water under it.

I heard someone used clear coat with good results.

CorrosionX is also used but from what I heard it is very sticky when it is cured, making dust and dirt sticking to it

They got a rubber paint on biltema than someone uses, but I guess it is similar to Plasti dip

Thanx for the ideas.

Finished my build yesterday so I'll see what I end up doing.