The main materials used for car lamp covers are usually polycarbonate (PC) or acrylic (PMMA, commonly known as acrylic), and the specific material used depends on the position and functional requirements of the lamp:
1. * * Front headlight cover * *: It is generally made of high-grade polycarbonate (PC resin). This material has high hardness, strength, toughness, good UV resistance, and a light transmittance of 80% -90%. It can withstand stone impact, scratch resistance, and maintain transparency and color stability under long-term use.
2. * * Taillight lampshade * *: PMMA (acrylic) material may be used, which is characterized by extremely high light transmittance, up to 92% or even higher, good transparency, impact resistance, and wear resistance, as well as easy processing and coloring. However, compared to PC material, its heat resistance and toughness are slightly inferior.
Both of these materials belong to the category of plastics. Compared to glass materials used in the past, they provide better safety (less prone to breakage), reduce weight, and are easy to design into various shapes to meet the aesthetic and functional needs of modern cars. In addition, these plastic lampshades are usually subjected to special treatments, such as hardening coating treatment, to further improve their durability and UV resistance, extend their service life, and maintain the clarity of the lampshade.
