what epoxy for proctecting circuit from harsh environments?

i.e. inside a car's engine bay.

Thanks,
Rey

 

Vibrations, humidity.

 

I guess I should have stated my question more clearly...

What type,brand, etc of epoxy should I use to protect a circut from harsh environments. And from where might I get it?

Thanks,
Rey

 

Potting compound.

Google is your friend.