How to Solve the Issue of Dense Small Dents on Painted Surfaces?
3 Answers
When there are dense small dents on a painted surface, traditional sheet metal repair techniques can be used to resolve the issue, or alternatively, paintless dent repair (PDR) technology can be employed. Traditional Sheet Metal Repair: Sheet metal repair involves fixing the deformed parts of a car's metal body. For example, if the car's outer shell has been dented, sheet metal work can restore it to its original shape. Then, by applying specialized paint, the deformed metal surface can be restored to match the undamaged areas, making it look as good as new. Paintless Dent Repair (PDR): Paintless dent repair, often referred to as paintless car dent removal, is based on optical and mechanical principles. It uses leverage to gradually restore dents of varying depths back to their original condition (similar to a factory reset on a phone).
As a veteran mechanic with over a decade of experience in auto repair shops, we call these small pockmarks on car paint 'orange peel effect.' The main causes are either dust falling onto the paint surface in an unclean spraying environment or improper thinner ratio preventing the paint from leveling smoothly. Our treatment process involves first sanding off the old paint from the entire vehicle, then using infrared heating lamps while applying body filler to fill the pits. For repainting, choose a dust-free baking room and adjust the atomization pressure to 2.5Bar for even coverage. Remember not to wash the car within three days after painting, otherwise moisture seeping into the paint layer will cause bubbles. When parking normally, try to avoid parking under trees as resin drips are most damaging to paint.
Our auto detailing shop often handles this kind of job - those annoying paint surface pits. Nine times out of ten, this issue is caused by dust contamination during painting or the clear coat curing too quickly. Our treatment process has three steps: deep pits are leveled with specialized filler paste, while shallow pits can be resolved with simple polishing. When repainting, humidity control in the paint booth is crucial - if it exceeds 60%, we must turn on the dehumidifier. After completion, we recommend monthly crystal coating applications to create a protective layer against small stone chips. We had a customer who ignored our advice and parked near a construction site - the pits reappeared within six months, making it money wasted.
