Talking about Car Lamp Covers


Lamp cover

Glass material&PC material

Which is better


The headlights of a car can be said to be an essential component. A good lampshade can effectively protect the headlights and ensure night driving safety, with high transparency requirements. What are the main materials used for lampshades? What industries can lampshades be applied to after recycling?


At present, the mainstream uses PC material, while some use glass material, but glass material has gradually withdrawn from the historical stage due to various reasons.



What are the advantages and disadvantages of both materials? Let‘s take a look!!!



PC lampshade material


After policy guidance and market testing, PC material has become the best choice for car lampshades due to its excellent light transmittance and easy to shape characteristics. In vehicle lighting systems, it is mainly used for lampshades such as lenses for headlights and fog lights.



Corrosion resistance, good impact resistance, high transparency and clarity, good insulation performance, low heat transfer, good physical properties, strong plasticity, and easy forming, production and processing. So currently, the headlight covers of vehicles are generally made of PC material.



Low rigidity and easy yellowing are the main drawbacks of the headlight cover. But if the later maintenance is good, this disadvantage can be changed.



Glass lampshade material


Before the popularity of PC materials, glass lampshade was the most commonly used lampshade material by manufacturers, mainly because of its good light transmittance and low cost. Of course, it was also limited to factors such as regulations and material technology level at that time.



Good transparency, high temperature without gas, no yellowing, weather resistance, and high light transmittance.



Easy to break, which is also the main drawback of glass headlights.


The main problem with PC materials is that they are prone to yellowing. This is because when new cars leave the factory, they coat the headlights with a layer of ultraviolet protective film. When the protective film is consumed by wind and sun, the PC will begin to age. However, if the protective film is regularly maintained and replaced according to the manufacturer‘s requirements, this disadvantage can actually be avoided.

The Elimination of Glass and the Rise of PC Materials


The main problem with glass materials is that they are prone to breakage. After being broken, they not only fail to protect the light bulbs of the car headlights, but also pose a potential hazard to pedestrians if the broken glass debris is encountered after a vehicle collision. Taking into account various reasons, glass materials are ultimately eliminated.


However, after years of development and improvement, PC materials have made significant technological progress through continuous breakthroughs in technological innovation and performance optimization. With the rise of recycled materials, the performance of PCR PC has reached or even surpassed that of PC, and is widely popular in the market.


For example, many automobile brands such as Geely, BMW, Volkswagen, and Jixing have begun to use PCR materials in their vehicles, which not only meets the general trend of the green and low-carbon carbon cycle economic system, but also conforms to today‘s consumer awareness of environmental protection, and is more likely to be recognized by consumers in the market. High quality and environmentally friendly PCR PCs have also begun to be applied on car lampshades.


What industries can PCR PCs be applied to?


At present, PCR PC mainly has three major application industries: glass assembly industry, automotive industry, and electronics and electrical industry. Secondly, PCR PC can be used for the casing and protective casing materials of industrial machinery parts, optical discs, packaging, computer and other office equipment, medical and health care, film, leisure and protective equipment and other equipment;


After modification, PCR PC can also be applied in the field of new energy vehicles. For example, PCR PC can be used in the lighting system, instrument panel system, and interior decoration system of new energy vehicles, including front lampshade, front and rear fenders, reflective mirror frames, door frame covers, operating rod covers, choke plates, junction boxes, sockets, plugs, and sleeves. It can also be used in the shell of new energy vehicle charging piles, charging gun shells, and contactor boxes inside the charging piles Charging plugs/sockets, relay casings, and other electrical component casings;


What are the characteristics of high-quality PCR PC materials that need to meet the above application directions and product requirements?



Topcentral® PCR PC®

PCR PC® Sources include but are not limited to plastic particles prepared through processes such as pre-treatment and standardized granulation modification, such as drinking water buckets, transparent sheets, car lights, container shells, lenses, optical discs, etc. Based on different recycling sources and quality levels, design classification screening, technological innovation breakthroughs, performance re optimization, and high-quality automated production processing to provide customers with extrusion and injection grade PCR PC particles.  

The company‘s products cover different colors and product series such as high molecular weight, medium molecular weight, low molecular weight, as well as colorless transparency, blue transparency, and black, which can meet the different application needs of industry customers. At the same time, we can provide comprehensive customized system solutions and innovative solutions according to customer special requirements.


Product brand




Coastbound®  OBP,

FreeCBO2® (Zero carbon),



Product Features

Fine design and optimization control of rPC raw material sources and quality, strict management of production and processing processes and technical quality standards, stable and sustainable product performance, and the ability to achieve full industry chain traceability;

The product complies with ROHS/REACH/FDA/standards and has passed the GRS/UL2809/TUV/ITE/"zero" carbon certification;

Providing "zero" carbon  PCR PC ®  FreeCBO2® (zero carbon products);

Can provide relevant data and certification such as carbon footprint and carbon emission accounting;

Can reduce or reduce carbon emissions by more than 91.3%, and some products have achieved "zero" carbon [cradle to gate];

We can provide comprehensive customized system solutions and innovative solutions according to customer customization requirements.


Typical products

Application direction

The product is suitable for downstream deep processing modified granulation, as well as extrusion and injection molding. It can be used for various injection molded parts such as switch panels, consumer electronics, electrical enclosures, automobiles, building blocks, etc.




See All

World Oceanic Day Guard the ocean health Topcentral®Drop of a new
June 8th is the 14th "World Ocean Day" and the 15th "National Ocean Propaganda Day"……

See All


See All

World Environment Day Special Event Topcentral®
On the eve of the arrival of the World Environment Day, the World Environment Day event specially planned by the Green Cycle Environmental……

See All


See All

Drive the future with green, help "Green Intelligent Manufacturing" To
Green and low carbon, not only in the mountains and rivers, but also in every detail and every aspect of production and life……

See All


See All

Science and technology resistance Topcentral®
In spring, it should have been a good season, and the bright and bright season……

See All


See All

See All