Swirl marks are missing clear coat, not dirt on top of it
Park a dark car in direct sun and you will see it: a spiderweb of fine circular scratches that seems to rotate around the light source. Each one is a scratch cut into the clear coat by grit dragged across the paint — almost always by an automatic wash, a dirty mitt or a dry chamois. Light entering a scratch bounces off its walls and leaves in the wrong direction. Enough of them and the panel stops returning an image and starts returning a haze. Nothing you spray on removes them, because there is nothing there to remove.
- Swirls and wash marring — fine, circular, worst on horizontal panels
- Holograms — a shimmering buffer trail, the signature of a rushed rotary
- Etching — bird lime, sap and water spots that have eaten into the clear
- Oxidation — a chalked, milky surface on paint left unprotected in the sun








