How to Determine If the Car's Primer is Exposed?
2 Answers
To determine if the car's primer is exposed, the method is as follows: Generally, black cars have white primer, and white cars have black primer. You can check the manual. Regardless of whether the primer is exposed or not, it is recommended to repair any deep scratches. If the scratches on the car body have exposed the primer, local touch-up painting is required. For such scratches, it is advisable to visit a paint repair center that offers quick scratch repair services. For vehicles with shallow scratches, a polishing method can be used for quick treatment. Use a polishing wheel with polishing enhancer to remove the oxidation layer attached to the car's surface, smooth out minor scratches, and allow the chemical to penetrate the paint for restoration, eliminating shallow marks.
I find the most reliable way to determine if a vehicle's primer is exposed is by carefully examining the color and depth of the scratch. A normal car paint surface is smooth and glossy. If a scratch reveals a silver or gray underlayer, it's likely the primer. You can also feel it by gently running your finger over it: if the scratch is deep, you'll sense the rough metal surface rather than smooth paint. I often check during car washes by using a small light to observe reflections - spots where the gloss fades usually indicate exposed primer. To expand on this, if primer gets accidentally exposed, it should be addressed promptly as rainwater penetration can lead to rust, and rust spots make repairs more complicated. For prevention, I recommend parking away from tree branches or metal objects, washing the car regularly, and applying wax to protect the paint from minor scratches worsening.
