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Originally Posted by 65Mark
I was referring to POR 15 on conversion coating, among others. Phosphoric acid is a good etch, as long as you neutralize it completely.
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Ah, Gottcha, my mistake... I miss under stood you... my appoligies...
Yes you are right on both counts there too. Although I have no personal experince with POR 15, If you apply it over rust or any type of similar coating that claims to neutralize it in a similar fashion, It is only a Band Aid fix at best...
Although I have no experince with POR 15, If it is So great why is not being in industrial applications like Bridges??? Especial ones in or near salt water??? I am Not saying its a Bad product just that the best way to treat rust is to completely remove it and then coat the bare metal accordingly...
Thats my
worth