Rust proof or not the outside of a steel steerer column beneath the stem I have a new steel frame which I am building up.  I intend to rust proof this first by using Waxoyl made by Hammerite which I will use on the inside of the frame and forks.

Should I use this on the outside of the steerer column ie under the stem etc?  I am worried about the stem slipping with this substance being oil based.  If not is there any way that I can rust proof the outside of the steerer column?

Thanks in advance.
I generally wipe whatever greasy or oily rag I have lying around at the shop on any uncoated steer tubes as a habit. We're in a fairly dry area so it's not of great importance. If I was in a wet area I'd use a product called FrameSaver.

There is no concern with slippage if the steer tube is greasy.