1. Q: How strong is the impact resistance of bulletproof PC board? What is the difference with bulletproof glass?
A: The impact resistance of our PC board is 250-300 times that of ordinary glass, and 6mm thickness can reach the bulletproof level. Traditional bulletproof glass relies on a multi-layer laminated structure, weighs more than 4 times that of PC board, and is easy to break as a whole after impact; PC board absorbs energy through molecular chain extension, only partially dents, and has no risk of splashing.
2. Q: How to avoid yellowing and brittleness of PC board during long-term outdoor use?
A: Using double-sided co-extrusion UV coating process, the nano-level protective layer (50-80nm) filters 99% of ultraviolet rays and passes the highest level certification of UL746C-F1. After 5 years of accelerated aging under strong sunlight in Florida, the transmittance only decreased by 3%-6%, while the attenuation rate of ordinary PC board reached 27%. Ordinary acrylic board has no UV layer and turns yellow obviously in 2 years.
3. Q: Can PC boards withstand extreme climates? Will they crack at low temperatures?
A: The operating temperature ranges from -40℃ to 120℃, and can withstand 130℃ in the short term. It was measured that there was no cracking at -30℃ ice cone impact, and no softening and deformation at 120℃. Acrylic boards become brittle at -10℃ and soften at 70℃. UL certification ensures that the physical properties of the material are stable under temperature differences and humid and hot environments.
4. Q: How does the lightweight feature reduce the overall cost?
A: The density is only 1.2g/cm³ (half of glass), which reduces transportation energy consumption by 40% and increases installation efficiency by 50%. For example, 10mm thick glass requires heavy brackets, while PC boards with the same protection can simplify the structure and reduce the overall cost by 30%.
5. Q: Is the sound insulation and heat insulation performance better than glass?
A: Hollow structure design, sound insulation is 3-4dB higher than glass (such as 6mm board sound insulation of 30dB), and heat insulation is improved by 7%-25%. The factory measured the hollow PC roof, the indoor temperature dropped by 5-8℃ in summer, and the air conditioning energy consumption was saved by 20%.
6. Q: Is the flame retardant performance reliable? Is the combustion toxic?
A: Passed GB50222 B1 flame retardant certification, ignition point 580℃, self-extinguishing and burning without toxic smoke. Ordinary PVC releases hydrogen chloride when burned, and acrylic board is flammable and produces molten droplets.