The damage in that picture is result of the abrasion between the panel and whatever it hit. It's not primer it's the result of getting scratched at high speed.

 

The person who posted the original picture was in the same scenario as me, where that portion of the car rubbed against a damned curb. I just want to know if I need to treat that area so it doesn't rust.

Why don't you just do a simple anti-rust etc. repair yourself regardless. It's low enough and out of sight enough that most people wouldn't notice, it would be cheap, and you wouldn't have to do an incredible job.

I wouldn't know what I would need for that, I'm really unfamiliar with repair and preventative methods and techniques. But if you could guide me in the right direction, I could get a friend to help me out with it.

Many thanks M3R.

 

Why don't you just do a simple anti-rust etc. repair yourself regardless. It's low enough and out of sight enough that most people wouldn't notice, it would be cheap, and you wouldn't have to do an incredible job.

 

I think on the Mz3 the area your referring to is plastic so rust wouldn't be an issue. I have to go look at my car but that's usually a plastic cover.

 

Oh really? It's the portion of the car right underneath the doors. I can get a better picture for you if you'd like? It's the rocker panel portion of the car if I'm using the correct wording.

 

Like Spencer mentioned, I would do the touch up repair yourself, or have a friend help you out since it is in an inconspicuous location. Find a colour matched paint (code is on your door jamb) online or from the dealer and spray over it. Even a rush job will look better than what you have now haha.

 

I actually have the Aluminum Silver colour Mazda3 2014, so the white curb rash/scratches blend it with it more or less. If the rocker panel portion of the car is truly plastic, then I wouldn't need to worry about it rusting. But how would I confirm if it's plastic?

 

Tap it with something hard and listen for a clink. Or just use a magnet.

 

The rockers on the 14+ mazdas are steel. There no plastic rocker cover on these ones.

 

Do you have a source for this information? From my basic science knowledge, steel does not rust, correct? But for example, if the same sort of deep scratches were on the fender, it would rust over time?