Door skin questions

[KLUTZ]

Hi

I have the old door skin off the passenger door and I am cleaning up a door skin I purchased from someone. The skin is new but has been sitting and had some surface rust on it. I took off the black primer stuff and am down to nice clean metal but the surface rust has caused some pitting.
https://img.photobucket.com/albums/v164/KLUTZP/Picture075.jpg
https://img.photobucket.com/albums/v164/KLUTZP/Picture076.jpg
It actually isn't as deep as it looks in the pictures.

I have used POR's Metal Ready on it and tried to get in as best I can, then acetone to clean it up more. What else should I do before Etch priming it so that the rust won't poke through in the future?

Paul

 

[jlaird]

One coat epoxy two part primer. Then a heavy fill primer. Block sand and fill as requited, mabe more fill primer.

 

[DrEntropy]

I'm inclined to sit on me paws here but can't... My 2P worth: Muriatic acid and a soft (natural) bristle 1" paint brush. Until all the oxide is 'burned' away. Wash with water & baking soda solution. Dry completely and apply etching primer. Sand and epoxy prime. A ~good~ fillerover the primer for small pits/scores is "Dolphin Glaze" (affectionately known here as "Porpoise Poop") epoxy filler. block it down to suit, then paint topcoat of choice.

 

[jlaird]

Tis my understanding Doc that the epoxy primer does not need etching primer first.

 

[vping]

Muriatic. Works great on rust & fingers. Wear gloves & eye protection.

 

[DrEntropy]

Jack!!! "Rust never sleeps!"

...like I said: "I'm ~inclined~ to sit on me paws"...

Just call me "anal". I ~HATE~ iron oxide.

 

[kennypinkerton]

I was just about to suggest the same thing doc... Except I was gonna say Phosphoric acid.

 

[jlaird]

Made a bad assumption, assumed the rust would be taken care of first.