Polycarbonate Diffuser Sheet has various appearances, including frosted one side and smooth one side, frosted on both sides, or frosted one side and orange peel texture on the other side, to meet different requirements for light diffusion and appearance texture. The main color of Polycarbonate diffuser sheet is milky white, and its standard transmittance covers multiple levels such as 80%, 75%, 70%, 65%, and 60%. The conventional thickness of the sheet ranges from 0.8mm to 3.0mm. It supports fixed-length cutting and OEM/ODM brand customization. It is a high-performance diffusion material designed for modern lighting systems. It is made of high-quality PC raw materials through extrusion process.
Polycarbonate Diffuser Sheet can effectively shield LED point light sources without affecting the overall brightness due to its high haze and moderate transmittance, eliminating obvious light spots, hot spots and shadow overlap problems. Whether it is close-range lighting or medium-distance arrangement, good luminous uniformity can be achieved. This performance comes from its precise formula control and microstructure design, which allows light to be refracted and scattered multiple times inside the sheet, thereby softening the light and avoiding glare problems. It is especially suitable for occasions with extremely high requirements for lighting comfort.
Compared with traditional PMMA diffusion materials, Polycarbonate Diffuser Sheet has stronger impact resistance. Its impact strength can reach 200 times that of ordinary glass, which is much better than acrylic sheets. It is less likely to break during transportation, installation or use, greatly improving the safety of the system. At the same time, PC diffuser sheets are very easy to process. They can be sawed, engraved, drilled, cold-bent or hot-formed. They have high dimensional stability, and the edges are neat and not easy to crack after processing. For large-volume OEM lighting manufacturers, this processing friendliness means improved production efficiency and guaranteed yield.
The standard transmittance range of Polycarbonate Diffuser Sheet is 60% to 80%, covering conventional light diffusion needs. If a high-brightness backlight is required, an 80% transmittance model can be selected; if the system emphasizes soft lighting and high shielding, a 60%-70% model is recommended. All transmittances can be fine-tuned according to customer project requirements. When different CCT light sources are used for LED lamps, the transmittance of the diffuser is adjusted to match the best luminous effect. At the same time, it supports supporting solutions such as laser engraving light guide patterns and multi-layer composite diffusion layer design to provide customers with integrated optical material solutions.
The entire series of Polycarbonate Diffuser Sheet products have passed ROHS, REACH, and halogen-free testing and certification, and do not contain substances harmful to the human body. In terms of combustion performance, Polycarbonate Diffuser Sheet supports UL94 V2/V0 flame retardant grades, and can provide special modified versions such as TPA and TPb to meet the market demand for strict standards for flame retardancy and safety performance in North America, Europe, and the Middle East. In addition, Polycarbonate Diffuser Sheet does not release toxic smoke when burning, and has excellent thermal stability and UV resistance. It has significant advantages in environmental protection, safety and durability, and is widely used in high-standard occasions such as public buildings, rail transit and hospitals.
We provide highly flexible OEM/ODM services to customers around the world, including transmittance adjustment, texture customization, brand LOGO printing, personalized packaging solutions, etc. Whether the customer is a lighting engineering integrator, industrial equipment manufacturer or advertising system service provider, we can recommend the most matching product model based on the actual use environment and structural parameters. We have multiple high-precision extrusion production lines and a strict quality control system, supporting large-scale delivery with stable delivery time. The supporting technical team can also provide material selection suggestions and sample testing support for the project.
In modern intelligent office building lighting design, Polycarbonate Diffuser Sheet is widely used in the diffusion layer of LED panel lights. Polycarbonate Diffuser Sheet can still achieve good lamp bead shielding and spot elimination effects under high lumen density light sources, making the office environment light uniform, soft and non-glaring. Its high strength characteristics can prevent panel damage during transportation and hoisting, and increase service life. In addition, customers can choose corresponding transmittance models according to different floor illumination standards, 75% for open work areas, and 60% for conference rooms, to ensure that the overall lighting design is both beautiful and energy-saving.
In large shopping malls, chain supermarkets or airport advertising light boxes, Polycarbonate Diffuser Sheet is widely used for its high stability and fireproof properties. The surface of Polycarbonate Diffuser Sheet can be optionally treated with orange peel texture to enhance the diffusion effect while avoiding front mirror reflection, improving the clarity and contrast of advertising images. Some customers choose the 70% transmittance version and match it with the backlight strip LED layout to effectively control the number of lamps and ensure uniform brightness of the light box screen. It is an ideal material choice for energy-saving upgrades of the backlight system.
Because polycarbonate material has UL V0 flame retardancy and excellent impact resistance, its diffuser is widely used in guide light systems and emergency lamp housings in urban rail transit stations. Especially in underground spaces with extremely high safety requirements, Polycarbonate Diffuser Sheet can not only work stably for a long time, but also does not produce toxic gases in the event of sudden fires, which meets the material selection specifications of railway projects in many European and American countries. Cases include Singapore Metro Station and Dubai Metro in the United Arab Emirates, all of which use our PC diffuser as the core material of the lighting display system.
In the lighting system of boutique hotels and high-end resorts, Polycarbonate Diffuser Sheet is used for hidden light strips and local atmosphere light diffusion layers, taking into account visual softness and high-end decorative sense. The milky white matte texture still presents a delicate texture when the lights are turned off, without affecting the beauty of the space. Designers can choose light transmittance and texture combinations according to different space atmosphere requirements to achieve a variety of visual expressions from minimalist style to Middle Eastern palace style. The good aging resistance and UV stability of this product keep it clear and new under long-term continuous lighting.
In electronic manufacturing workshops, food processing clean areas, biological laboratories and other places with extremely high requirements for cleanliness and illumination uniformity, PC diffuser panels are often used as outer cover materials for customized lamps. Its chemical corrosion resistance and easy-to-clean surface performance ensure environmental hygiene; at the same time, the dual performance of high light transmittance + strong diffusion supports fewer lamps to cover the entire space, improving energy efficiency. Some industries have replaced glass diffusers in their production systems with our TPA flame retardant grade customized panels, reducing safety hazards caused by breakage.
