olenderc
New member
- Dec 16, 2012
- 118
- 0
Car in question: 2014 Subaru WRX STi
So, I've been trying to figure out what a particular residue is left on my paint after washing my car. After washing, in daylight, the car looks fantastic. I've had some possible "industrial fallout/superficial brake rust?" that I've been trying to solve on my front doors right behind the wheel wells.
I usually presoak with Bilt Hamber autofoam, then follow with CarPro Reset (2 bucket method).
Yesterday, I decided to skip the presoak to see if that was leaving any sort of film, which I highly doubted it did. However, I proceeded with a rinse and 2 bucket wash with the CarPro Reset. After rinsing a section I also sprayed it down with Iron-X then gently spread it around after 3-5 min, and then rinsed again. I added the Iron-X to see if I could clean up some of the little rust specks, which it seemed to do a decent job removing for the most part.
Again, car looked great clean and in regular light. But later in my garage that night when I shine a Brinkmann light on the door it basically looks like this:
The smudges to the right are from me trying to swipe my finger through it and see what the consistency of the film was. I use an Aussie Merino Wool Wash Mitt, which is very delicate. I don't know if I'm washing too softly (doubt it, I still have swirls), but this is starting to really annoy me. Is this something I would need a claybar for? I have a speedy prep towel, but would rather not use that as it typically leave a good amount of marring. Other than claying, I can't think of anything that would fix this, save polishing the paint again (which I plan later this summer). The CarPro Reset has no fillers or crap to leave anything extra on top of the paint. I'm stumped
.
So, I've been trying to figure out what a particular residue is left on my paint after washing my car. After washing, in daylight, the car looks fantastic. I've had some possible "industrial fallout/superficial brake rust?" that I've been trying to solve on my front doors right behind the wheel wells.
I usually presoak with Bilt Hamber autofoam, then follow with CarPro Reset (2 bucket method).
Yesterday, I decided to skip the presoak to see if that was leaving any sort of film, which I highly doubted it did. However, I proceeded with a rinse and 2 bucket wash with the CarPro Reset. After rinsing a section I also sprayed it down with Iron-X then gently spread it around after 3-5 min, and then rinsed again. I added the Iron-X to see if I could clean up some of the little rust specks, which it seemed to do a decent job removing for the most part.
Again, car looked great clean and in regular light. But later in my garage that night when I shine a Brinkmann light on the door it basically looks like this:

The smudges to the right are from me trying to swipe my finger through it and see what the consistency of the film was. I use an Aussie Merino Wool Wash Mitt, which is very delicate. I don't know if I'm washing too softly (doubt it, I still have swirls), but this is starting to really annoy me. Is this something I would need a claybar for? I have a speedy prep towel, but would rather not use that as it typically leave a good amount of marring. Other than claying, I can't think of anything that would fix this, save polishing the paint again (which I plan later this summer). The CarPro Reset has no fillers or crap to leave anything extra on top of the paint. I'm stumped
