You’ve painted your car, but the paint film is not adhering uniformly, and the surface now shows beads, droplets, or ridges. Runs and sags can be eliminated by removing the wet paint film, sanding, and refinishing.
In this article, I’ll answer common questions about how to prevent runs and sags and eliminate them when they happen.
Runs and sags (also referred to as hangers, curtains, or signatures) describe localized thickening of the paint film that shows up as wavy lines or shallow, rounded ridges.
Errors in applying the finish are usually the cause of runs and sags. Here are seven possible causes:
Repairing runs and sags can be done by:
Use these tips to avoid runs and sags:
On your next paint job, use these tips to achieve a smooth new finish on your auto.