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30 Year Gray Aluminum Curtain Wall Panel

Prepainted Aluminium Coil
January 04, 2026
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Brief: Wondering how it compares to other options? See the demo and decide for yourself. This video showcases the 3105 gray polyester-coated aluminum sheet for curtain wall back panels. You'll see how its 1.2 mm thickness and custom width options deliver perfect flatness, 30-year color stability, and 60% faster installation compared to steel alternatives.
Related Product Features:
  • Features 3105-H14 aluminum alloy with 20% higher strength and excellent formability compared to 3003 alloy.
  • Architectural-grade polyester coating provides 2000-hour salt spray resistance and a 30-year color and chalking warranty.
  • Available in custom widths from 600-1650mm with protective film for easy cassette fabrication and honeycomb bonding.
  • 70% lighter than steel alternatives, saving 2.5 kg/m² while maintaining structural integrity.
  • Maintains perfect flatness with no waves after cassette forming for uniform appearance.
  • Pre-coated surface eliminates on-site painting, enabling 60% faster installation.
  • Ideal for rain-screen back trays with excellent ventilation and drainage capabilities.
  • Environmentally friendly with 96% lower CO₂ emissions compared to steel back panels.
FAQs:
  • What are the key advantages of using 3105 aluminum alloy for curtain wall back panels?
    The 3105 aluminum alloy offers 20% higher strength than 3003 alloy, excellent flatness and formability, and maintains perfect flatness after cassette forming. Combined with the gray polyester coating, it provides 30-year color stability and 2000-hour salt spray resistance.
  • How does the installation time compare to traditional materials?
    The pre-coated aluminum sheets enable 60% faster installation compared to painted steel or composite alternatives, as they eliminate the need for on-site painting and preparation work.
  • What environmental benefits does this product offer?
    This aluminum sheet provides 96% lower CO₂ emissions compared to steel back panels and is 70% lighter, reducing transportation energy and structural load. The material also supports sustainability with potential for recycled content.
  • What coating options and color warranties are available?
    The product features architectural-grade polyester coating in RAL 7035/7040 gray colors with a coating thickness of not less than 25μm for PVDF and 18μm for PE. It comes with a 30-year color and chalking warranty.
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