Why is there a rough, sandpaper-like patch on the car paint?
2 Answers
Reasons for a rough, sandpaper-like patch on the car paint: It may be due to the presence of many harmful substances on the surface, causing the paint to feel rough. It is best to use a clay bar for removal. Below are the steps to clean the car paint: 1. First, rinse the dirt attached to the car body with clean water or car wash soap; 2. Then, use a clay bar soaked in warm water to gently wipe the paint while spraying water. Avoid using too much force, so maintaining controlled pressure is more stable. Stop the operation once the surface becomes smooth again; 3. Apply a layer of wax to the car. Waxing not only protects the paint but also enhances its shine.
I've been driving for over a decade and encountered this kind of matte paint surface quite often. It's likely paint oxidation – prolonged exposure to UV rays loosens paint molecules, just like the rough texture on my old car's hood. It could also be dried bird droppings or tree sap residue that wasn't cleaned properly, forming a gritty layer. I recommend first washing with automotive-specific cleaner, then applying wax. If that doesn't work, polishing may be needed, but be gentle to avoid damaging the original paint. Prevention is actually most crucial – regular washing and waxing can avoid these issues. Safety first, never neglect it.
