Karttikeya, rust attacks ferric material where water is present.
In the ideal situation ferric material should be stored on glass or plastic/perspex shelves in a climate controlled environment, ie, constant temperature, no moisture.
For the usual collector the provision of such environment is not practical, nor possible.
The important thing is this:- keep ferric material out of contact with moisture, and that includes cellulose material, which retains moisture. That means don't let your blades be stored in wood or paper or cloth.
My post # 4 sets forth simply and concisely the methods that I have used over better than 50 years. My methods work. I have blades that I have treated and stored as I describe that have not been re-oiled in better than 20 years. Even 40 odd years ago I was using split plastic bags to wrap blades in, and I still have a couple of these blades in their original wrappings.
Climate is another consideration. I do not live in a tropical climate, but I do live in a maritime climate, I'm less than 25 meters from salt water.
Plastic wrapping of a blade after oiling does work, and most definitely does not generate rust.
But if one does not wish to use plastic, that is not important, what is important is that the blade be protected from contact with moisture. This means that you do not store the unprotected blade in the wrongko, and that you exclude contact with air. This is the purpose of oil:- it excludes air. Plastic wrapping retains the oil.
I have a very great number of blades that need to be protected. I do not have the time to oil each blade every few weeks, thus I try to keep the oil on the blade for as long as possible. Plastic wrap helps to achieve this.
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