PC sheet with good impact resistance, high strength, unbreakable, good weather resistance, high transmittance, plasticity, light weight, heat insulation, flame retardant, anti-ultraviolet and long service life, and other characteristics. 1. Impact resistance: the impact of solid sheet can be up to 3kg / cm, the impact strength of PC sheet is 250-300 times that of ordinary glass and 20-30 times that of acrylic sheet, is two-fold glass, almost there is no risk of fracture. With two meters below 3kg hammer falling and no cracks, the "bulletproof glass" and "ring of steel" reputation. 2, translucent: excellent light transmittance of 75 ~ 90%, while its transparency may be comparable with the glass. Under the sun exposure does not produce yellowing, fogging, poor light transmission. UV coated plate in the sun, prolonged sun exposure does not produce yellowing, atomization, poor light, light transmission loss was only after ten years 6%, PVC turnover rate is as high as 15% -20% glass fiber is 12 % -20%. 3. Weather resistance: The surface layer co-extruded UV resin fatigue caused by ultraviolet sunlight to prevent yellowing. Surface layer co-extruded with a chemically absorb ultraviolet light and converted into visible light for plant photosynthesis have a good stabilizing effect. Outdoor ensure years without fading. In the range of -40 ℃ to 120 ℃ to maintain the stability of the physical indicators. Artificial weathering test 4000 hours, yellowing of 2, reducing the value of the transmittance of only 0.6%. 4, flame resistance: polycarbonate panels themselves have not spontaneous and self-extinguishing. EU ROHS Directive and the stringent UL safety norms, UL94 V0 fire rating level, V2 stage, HB grade. PC board itself ignition is 580 degrees Celsius, away from the fire self-extinguishing, does not produce toxic gases when burned, will not contribute to the spread of fire 5, heat resistance, cold resistance: Celsius -40 ℃ to + 120 ℃ temperature range does not cause deformation quality deterioration. PC board does not occur at -100 ℃ cold crisp when not soften at 135 ℃, in the harsh environment no significant change in the mechanical, mechanical properties. 6, hard light: light weight, only half of the glass, acrylic plate 1/3, good adaptability and security, ease of handling, drilling, cut off installation, easy to break, easy construction process. 7, plasticity: according to design using cold-formed at the site, the installation arched, semi-circular roof and windows. Minimum bend radius is 175 times the thickness of the plate using, also bending. 8, noise: PC board noise effect is obvious, there is a better sound insulation than the same thickness of glass and acrylic plate, at the same thickness condition, PC board to improve sound insulation than glass 3-4DB. Highway noise barriers is the material of choice in the international arena. 9, energy efficiency: 夏天保 cool, winter insulation, PC board even less than ordinary glass and other plastic thermal conductivity (K value), high insulation effect than the equivalent of 7% -25% glass, PC board insulation maximum 49%. So that heat loss is greatly reduced, and used to warm the equipment building is environmentally friendly materials. 10, anti-condensation: the outdoor temperature is 0 ℃, the indoor temperature is 23 ℃, indoor relative humidity below 80%, the inner surface of the material, non-condensing.