How to Determine if a Car Scratch Has Reached the Primer?
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Methods to determine if a car scratch has reached the primer include: 1. Visual inspection—the primer color is opposite to the car paint color, so a scratch will show a noticeable color difference; 2. Run your fingernail over the scratch—if it feels slightly rough and indented, it indicates the primer is damaged; 3. Check if the scratched area has rusted. The main function of the primer is to enhance the smoothness of the car's surface, ensuring the topcoat appears more vibrant and adheres better. Car paint maintenance methods: 1. Promptly remove dust from the car body to minimize static electricity attracting dust; 2. Rinse off rain stains with clean water after rainfall; 3. When wiping, follow the direction of water flow from top to bottom.