I have been using Boeshield T9 for many years. It is a very thin liquid when sprayed out of the can, but it dries to a waxy dry finish. It will wick into very small spaces and I'm guessing that Boeing developed it to control corrosion. It does a great job of that and is very useful for controlling corrosion in electrical components. It is a dielectric though so it must be cleaned off contacts, etc for them to function properly. I use it on anything I need to control corrosion on, including guns, circuit boards, bike electrics, boat electrics, etc. I also use it on bike chains. It provides lubrication because it wicks into the smallest spaces and dries to a wax, so it does not attract dust or dirt. It works best on a clean, dry chain, when used for that purpose. If you are not familiar with Boeshield T9, I recommend you try it. Bob