[TowerTalk] rusted spots on tower

[kr2q at optimum.net]

Hi all,

I have a pair of crank-up towers that are over 25 years old each.  I only crank them up
-down rarely...perhaps twice a year each.

Some of the "overlap" points have had the galvanization knocked off over the decades
and those areas (no more than 12 inches long by 1" wide) are rusting.  The towers are
in good shape, other than those few, small areas.  The rust is not "dripping"...just on the
surface (at least it looks that way).

Any suggestions on how to clean them up (remove rust) and protect them moving forward?
Just rustoleum?  

Thanks!
de Doug KR2Q