When I mentioned "magic potions" I was not refering to a metal conditioner that contains Phosphoric acid, that WILL remove rust. It is the mainstay of every REAL paint company out there. What I was refering to is POR and the like. They DO NOTHING but "cover up" the rust. They do not "convert" or anything of the sort. They "encapsulate" as the marketing department says. Look up the word "encapsulate",it is basically "wrapping around" or "covering up".
If POR did what they say it does, it would be found filling the hulls of freighters in 55 gallon drums going to every corner of the earth. It would not be found only in a swap meet stall in pints (ok, they have quarts and gallons) next to a guy selling Rally wheels and hub caps. :rolleyes: It would be in the Fortune 500 list, it would be the biggest thing in news in the trade journals of many industries around the world.
It is a snake oil, not much unlike the "engine rebuild in a can" or diet pills.
What do they put on the Golden Gate bridge
(Click here) no POR there, how about Off shore oil rigs?
(click here) no POR there either. NO, just zinc rich primer just as EVERY automobile manufacture uses! Galvanizing is Zinc by the way. It is called a "sacrificial" coating. It "sacrifices" it's self for the good of the parent metal.
If POR did what they say, GM, Toyota, Ford and the like would be buying train loads of it and guaranteeing their cars forever against rust. There would be no rust on trains, bridges, trucks, metal buildings, EVERYONE would be happy to pay the cheap prices POR sells for. One of it's main ingredients is a sap from a soft pine tree, sweet. :p
There is nothing we could ever do in our garages or shops that would prove one way or another. You need serious testing with a standard to prove anything. Slathering it on some rust and calling it good because it didn't come back doesn't mean a thing.
I am sorry, they have their place, I just want to throw up when I read over and over on forums about people believing the marketing depts sales pitches.
