Corrosion protection.

Krown is the best. if only our American friends wouls use it....

 

This Krown looks a lot like a product here called Fluid Film, I just started playing with this stuff so I can not say much but every review I have seen has been positive, time will tell.

 

Galvanizing a truck frame is the best way to prevent rust. if you've got the things strip down to the bare frame it shouldn't cost more than a couple hundred bucks to have it the frame galvanized and it'll last 100 years.
For neutralizing rust thats pre-existing,
it's kind of hard to beat this stuff available at Home Depot for $15.79 a gallon.

 

Looks interesting and easy.
I used POR-15 on a utility body years back and some rust came back.
This past fall i stripped down a T 800, removed wheels, fuel tanks, fifth wheel, battery box, storage box and bumper, wire wheeled and used a DA sander and applied Osphro.
Osphro takes a min of 24 hours to dry in rust areas to a white film, then i had to use acetone to remove the white film that formed which took the whole day with a helper, very labor intense.
The Black Max if it works is much easier, my W 900 is next and i am going to try it, thanks Cowpie.

 

Did you use this stuff?

 

i think so, maybe i spelled it wrong.

 

Here's a recipe anybody can use to make their own rust converter without having to spend $50 a gallon.
The main ingredient is phosphoric acid.

 

After doing a little bit of research I've come to the conclusion this is the cheapest way to go to neutralize rust.
This makes four gallons of rust converter when you add three parts water so it costs less than $4 per gallon for rust converter using this method. You can pour this in a Hudson sprayer and just spray it on the frame and the undercarriage.