What is this?!!!!! I know its rust but what kind

[torqueaddict]

Hey guys I know I made a mistake painting my car before I did all the rust repair but it seemed like a easy enough task. Ok what you are looking at is my driver side rear pan, its not actual cancer its all good metal but what appears to be surface rust is tougher that an overcooked steak(my wrist is killing me). Maybe someone can tell me some tried and true method of getting this stuff up. I am going to put rust bullet down to protect the metal the say I can put it directly over the metal but I really dont feel comfortable doing that even with just surface rust. Also a little on the weird side I put some rubbing alcohol
on it and it came up some but by then I was tuckered out anyone have any suggestions or experience with this kinda surface rust? Any info or advice will be much appreciated. 

[brads70]

I have used a wire wheel on a disc grinder to remove surface rust. Works good! Just wear safety glasses!

[BIGSHCLUNK]

   then chemically kill it! then seal it!  Benn there done that. 

[torqueaddict]

I have used a wire wheel on a disc grinder to remove surface rust. Works good! Just wear safety glasses!

I tried that b4 it was chewing thru the floor what's the chemical way

[dutch]

if your wirewheel chews through the floor, the floor is toast 

[torqueaddict]

if your wirewheel chews through the floor, the floor is toast 

Ok chewing may be to far, i guess pitting would be a better term for what i am trying to describe. I guess wire wheel and grinder it is then I just was hoping to be able to get it with sandpaper steel wool. Goodluck to me I will need it.

[dutch]

when the metal is really pitted your best shot of getting it really clean will be blasting.  There are small blastguns avaiable with a rubber cap you push onto the metal. I works really clean and blasts about 2" in a circle.  the wirewheel will not touch and clean the bottom of the pits.

[brads70]

If it's just a few small area's that are pitted...wel ok? But if the whole floor or most of it is pitted....well I'd be replacing it? Being unibody paper thin floors or any other structure isen't a good foundation? Just my 

[torqueaddict]

If it's just a few small area's that are pitted...wel ok? But if the whole floor or most of it is pitted....well I'd be replacing it? Being unibody paper thin floors or any other structure isen't a good foundation? Just my 

Its primarily one section and I was gonna treat it, coat it and, and dynamat it i winder is that really required.

[sleepychallenger]

i used navel (sp) jelly before. works good, harsh stuff though, will eat through rubber gloves quick! 

[torqueaddict]

How do you apply the navel jelly? Do you still have to scrub it, and will it damage the metal at all?