[Repeater-Builder] Perparation of new antenna

[wa5luy]

I know this subject has been kicked around in the past but I need a 
refresher. We are about to install a brand new DB 420 at the top of our 
220 foot county tower for our local 444.6 repeater. 
Other than checking all the hardware and tightening the connections 
what else needs to be done. Is Scotchkote a good thing? If so 3M 
usually has several types of all of their products. Which is best? 
Any other suggestions would be appreciated.