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What is the typical light transmittance of polycarbonate sunshades?
The light transmittance of polycarbonate sunshades is usually around 80% -90%. If it is a single-layer polycarbonate sheet, its transmittance can reach about 88%; If the polycarbonate sunshade is multi-layer or specially treated (such as adding some shading or diffuse reflection additives), the light transmittance may be reduced, but it can generally be maintained above 80%.
Due to differences in material formulas, production processes, and surface treatment methods, the light transmittance of polycarbonate sunshades of different brands and models may vary slightly.



















| Characteristics | Unit | Data | | | | |||
| Thickness | mm | 4 | 6 | 8 | 10 | |||
| Weight | kg/㎡ | 0.9 | 1.3 | 1.5 | 1.7 | |||
| Minimum radius for cold bending arches | mm | 700 | 1050 | 1400 | 1750 | |||
| Standard width | mm | 2100 | 2100 | 2100 | 2100 | |||
| Standard length | mm | No Limited | | | | |||
| Light transmission | | | | | | |||
| Clear | % | 82 | 81 | 80 | 80 | |||
| Grass green | % | 56 | 50 | 44 | 42 | |||
| Lake blue | % | 55 | 49 | 45 | 43 | |||
| Bronze | % | 43 | 36 | 33 | 29 | |||
| White | % | 42 | 35 | 33 | 29 | |||
| Blue | % | 35 | 25 | 20 | 16 | |||
| Heat transfer coefficient K value | W/(㎡.k) | 3.6 | 3.5 | 3.2 | 3.1 | |||
| Weighted sound reduction index | db | 12 | 15 | 15 | 19 | |||
| Drop hammer impact | | Pass | | | | |||
| Coefficient of thermal expansion | mm/m.℃ | 0.065 | | | | |||
| Flame retardant level | | B1 | | | | |||
| Service temperature | ℃ | minus 40~plus 120 | | | | |||



