What is a run in car paint?
Also calledCurtains, Drips, Gun spits, Hangers, Overloading, Runs, Runs & Sags, Runs and Sags, Sagging, Sags, Signatures
Too much paint went on an upright panel, or it was too cold, so it sagged before it set. It is a thick spot that ran and then hardened.
What kind of repair does it need?
Sanding flat and polishing, if the run is in the clear coat. It works because a run is extra paint, so there is plenty to cut. A run in the colour coat of a basecoat system needs painting. Metallic paints normally need repainting, because cutting disturbs the flake.
Depth decides it. If there is enough good clear coat above the fault, it is sanded flat and polished. If levelling it would go through the clear, or the fault is in the colour, the panel is painted again.
What to do next
Take it back to whoever sprayed it. Levelling runs is normal finishing work they should have done. If you are paying someone else, a detailer who does wet sanding can do it. Do not try it yourself. It is easy to go through the clear coat.
Sources
- PPG GBpaint maker
Well defined local thickening of the paint film in the form of a wavy line or shallow, rounded ridges.
- Axaltapaint maker
In the case of a basecoat, refinishing after sanding is necessary.
- Sherwin-Williams Automotivepaint maker
a minimum film thickness of the clearcoat (2 mils) is required to maintain adequate ultraviolet protection
Not sure what your car damage is?
Point your phone at it, or describe it. The answer in seconds, $8 AUD.
Check it