How to Repair Corroded Car Trim?
2 Answers
Corroded car trim can be repaired using toothpaste. Toothpaste contains antioxidants and abrasive particles for stain removal. Simply apply it with a damp towel and polish. Alternatively, toilet cleaner can be used as it contains dilute hydrochloric acid to dissolve oxides—wipe with a towel for removal. Detailed methods are as follows: 1. WD-40 Multi-Use Product: WD-40 has strong surface affinity and permeability for metals, penetrating capillary pores to 100% eliminate moisture and form an ultra-thin protective film that blocks humidity and air, effectively solving rust issues "from the inside out." However, its primary function is rust prevention rather than removal, so some marks may remain after use. 2. Carburetor Cleaner: This cleaner tackles stubborn stains like oil and adhesive residues but has strong corrosiveness that may affect car paint—avoid spraying on painted surfaces. Since it isn’t viscous enough to adhere well to chrome trim, multiple applications may yield limited rust removal results.
The corrosion on the trim of my car was really annoying, but fixing it myself wasn’t difficult. Last month, I faced the same issue when rust spots and water stains appeared on the trim. First, I thoroughly rinsed the car with warm water and automotive-specific cleaner to remove salt and dirt. Then, I dried it with a soft cloth and applied metal polish, gently rubbing the corroded areas. For deeper rust, I lightly sanded it with fine-grit sandpaper. Next, I applied rust-resistant primer and a clear protective coating, letting it air-dry before applying car wax. The whole process took less than two hours and cost only a few dozen yuan. Now, the trim shines like new. I make sure to wash the car weekly and avoid parking in damp areas to prevent future corrosion.
