Usually caused by oxidation, ultraviolet radiation or dirt accumulation. You can choose the appropriate method according to the degree of yellowing of the shade:
- Soapy water or baking soda cleaning
Using soapy water or baking soda solution to wipe the surface of the shade can effectively remove dirt and slight oxide layer. Soapy water is mild and will not corrode the shade, suitable for daily cleaning. - Sandpaper polishing
For more serious yellowing, you can use sandpaper of different meshes (such as 400 mesh, 800 mesh, 2000 mesh) to polish the surface of the shade in sequence. After polishing, use polishing agent and clear oil for protection to restore the transparency of the shade. - Toothpaste cleaning
The abrasive ingredients in toothpaste can effectively remove the oxide layer. Apply toothpaste on the shade, wipe it evenly with a soft cloth or toothbrush, and finally rinse it with clean water. This method is simple and low-cost. - Professional Cleaner and Polishing
After cleaning the lampshade with a professional cleaner, lightly sand it with soft sandpaper and finally apply polish. This method can significantly restore the gloss of the lampshade and is suitable for moderate yellowing. - Fumigation Repair or UV Spray Painting
Fumigation repair uses chemicals to form a new protective film on the surface of the lampshade, while UV spray painting requires drying with ultraviolet light. These two methods can make the lampshade look brand new, but the operation should be cautious to avoid unevenness or yellowing again. - Replace the lampshade
If the lampshade is severely yellowed or the above methods are ineffective, it is recommended to replace it with a new one directly. Many models provide separate new lampshades, which are affordable and effective.
Precautions
Avoid using corrosive cleaners (such as laundry detergent) during operation to avoid damaging the lampshade.
When grinding or polishing, be careful to cover the surrounding car paint and accessories to prevent accidental injury. If you are not sure about the operation steps, it is recommended to seek help from a professional car beauty shop.
