[TowerTalk] Restoring / Preserving Aluminum

[KT2Q]

All: 

Taking down the old antennas -- replacing with new and restoring the old. Crank-up tower needs inspecting etc. 

Questions: 

1. What's the best product out there for cleaning, restoring and preserving antenna aluminum? Brush-on? Spray-on? 
2. Is penetrox the best way to prevent oxidation on balun connections etc? Is it a good idea to spray connections with non-metalic paints after applying penetrox?
3. Noalox is still used for aluminum element connections and so on -- are there any new and improved compounds? 
4. Do spray or brush-on aluminum preservative paints / laquers eventually crack / peal? Anything available that doesn't?

The tower is a U.S. Tower model HD555. It's been up for 5 years. What products are best for cable lubrication, cleaning greasing the tower section contacts etc? There are a few small rust spots on the tower and steel mast and was told that Naval grease will do the trick. Is rustoleum paint a good product to use after rust removal?  

Thanks, Tony KT2Q