As stated before , did you read the directions regarding proper use of POR  15? It is designed to go over RUST , not ground down shiny metal, putting it over good paint is a recipe  for future problems.
       

                          Stacy 

Sent from my iPhone

> On Oct 13, 2015, at 2:56 PM, John Dillon <johndillon@JOHNDILLON.COM> wrote:
> 
> You know POR 15 is supposed to be applied to rust? 
> 
> Sent from my iPhone
> 
>> On Oct 13, 2015, at 4:34 PM, Nick Feickert <thesuperflydisco@GMAIL.COM> wrote:
>> 
>> Aright, after much consideration and the fact that I have no money trees
>> growing in my yard, I'm going for the restore. I have a tank with the tact
>> welded tag at the corners and yes, it was half rusted away so I cut it
>> off. Underneath the tag was the most serious rust issue. Some pitting, so
>> I grinded the hell out of it. After 3 afternoons of grinding and sanding
>> the whole tank and rock shield, it's ready for some protection! I've got
>> the first coat of POR-15 on it. Gonna do a second coat soon, and prep it
>> for a nice white top coat.