How Long Can Car Headlight Polishing Last?
2 Answers
Car headlight polishing can last for two to three years. Here are some precautions for car headlight maintenance: 1. Replacement: Car headlights should maintain good sealing, especially to prevent contamination and damage to the reflector coating. When replacing bulbs and diffuser glass, avoid touching the mirror surface with fingers to prevent leaving sweat or oil marks that could cause the reflector to lose its luster and reduce reflective efficiency. 2. Regular Inspection: Regularly check and adjust the headlight beams to ensure the illumination distance meets requirements and that the bright light beams are consistent vertically. The diffuser glass should be correctly installed as specified to prevent loosening or displacement, maintaining the vertical alignment of the prisms.
As someone who frequently works on car repairs, I find the duration of headlight polishing varies significantly depending on the environment and maintenance habits. Generally, a thorough polishing can last from 6 months to 1 year. If you park in shaded areas or garages, it might last even longer. UV rays from sunlight are the biggest enemy, accelerating plastic surface oxidation and quickly causing cloudiness again. That's why applying a UV protective coating after polishing is always recommended – products like ceramic coatings on the market can extend the effect to about 18 months. Washing your car too frequently or using strong acidic detergents can also wear down the protective layer, so it's advisable to use a soft cloth for gentle cleaning during monthly maintenance. In heavily polluted or coastal cities, dust and salt erosion can degrade the polish faster, possibly making it ineffective in just half a year. Regularly checking your headlights' condition and timely maintenance is a cost-effective and hassle-free approach. After all, cloudy headlights affect driving safety – don't wait until they're completely unclear to take action.
