Fuel Tank Install Question

[fdheld34]

I will be installing my new 47 gallon fuel tank this weekend.

I am not going to use foam and I will be following David Pascoe "How to Install an Aluminum Tank" I will be using plastic strips attached with 5200 to keep tank off of coffin plus securement and also secure with tabs to stringers.

Question...since this tank will have adequate air exposure and will not be foamed in ...do I need to coat tank with coal tar etc?....I read aluminum is self protecting and if I do above procedure without foam that there is no need for coating tank

Need advice etc!
-Fred