coating interior pans? body off guys?

[G NASTY]

should i try and bring everything down to bare metal or can i por 15 over the factory coating? i tried to sodablast it today and it wont cut through the factory coating, so i wirewheeled for 4 hours and got front pass pan clean and por 15 over it, just not sure if i wasted my time and i should have just painted over the factory coating with the exception of wire wheeling the rust spots.

 

[TURBOV8R]

Think you made the right move.When I contacted POR they claimed that the finish must be applied to rusty,seasoned metal no factory paint/coatings or grease.I've used it in the past on frames with good results.Currently I'll be applying it over the Roof area where I made the repairs on the T roof which led the same question that you have ,I asked them cause I had some spots where factory paint was still there.Dunno what happens if you apply it over paint but have heard that it will eventually flake off in sheets.

 

[Chuck Leeper]

It will flake off of clean/bare metal, painted metal.
I used it 1 time.. enuf for me. I applied it to BARE, clean, rusted metal on my 55. Came off in big sheets....

 

[SloGN]

i haved not used the por15 stuff. but when i redid the interior of my gn. I used undercoating about 5 cans of it at least to help protect the floor pans as there was some rust along the seams where the floor baces and other stuff was joined together.

 

[streetwavesauto]

Just scuff with scotchbright pad, thoroughly clean and paint. I used the POR15 Kit and it worked out awesome!

 

[TURBOV8R]

It will flake off of clean/bare metal, painted metal.
I used it 1 time.. enuf for me. I applied it to BARE, clean, rusted metal on my 55. Came off in big sheets....

I would have went into a fit of rage that would have been legendary in Hell!!