Core Characteristics

• Superior Reflectivity: Depending on the grade and processing technique, its reflectivity ranges from 80% to over 95%. High-end products can even reach a near-mirror effect (≥92%), comparable to glass mirrors but with better impact resistance.
• Lightweight & High Strength: With a density of only about 2.7g/cm³ (one-third that of steel), it is easy to transport and install. Meanwhile, its tensile strength (110-300MPa, depending on the alloy) ensures durability in structural applications.
• Excellent Corrosion Resistance: The natural aluminum oxide film on its surface, combined with optional post-treatment (e.g., anodizing, coating), provides strong resistance to moisture, chemicals, and atmospheric erosion — suitable for both indoor and outdoor use.
• Good Formability: It can be easily processed via cutting, bending, rolling, stamping, or welding without damaging the mirror surface, adapting to complex shapes required by different products.
• Eco-Friendly & Recyclable: Aluminum is 100% recyclable with minimal loss of performance. The production process of mirror aluminum also emphasizes low energy consumption compared to other reflective materials (e.g., stainless steel).

Production Process

• Base Material Selection: High-purity aluminum coils/sheets (e.g., 1050, 1060, 1100 for general use; 3003 for enhanced corrosion resistance; 5052 for higher strength) are chosen as the raw material, as impurities would affect surface flatness.
• Degreasing & Cleaning: The base material is cleaned with alkaline or acidic solutions to remove oil, dust, and oxide layers, ensuring no contaminants interfere with subsequent polishing.
• Precision Polishing: This is the key step to achieve mirror effect. Two main methods are used:
  • Mechanical Polishing: Abrasive belts (from coarse to ultra-fine grit) or polishing wheels are used to grind the surface repeatedly, gradually reducing roughness to Ra (surface roughness) ≤0.02μm.
  • Chemical Polishing: The aluminum surface is treated with a mixed acid solution (e.g., phosphoric acid, nitric acid) to dissolve micro-irregularities, creating a smooth, reflective finish — often used for high-precision applications.
• Surface Protection: To maintain the mirror effect and enhance durability, protective treatments are applied:
  • Anodizing: A thick, hard oxide film (5-20μm) is formed on the surface via electrolysis, improving scratch resistance and allowing for color customization (e.g., silver, gold, black).
  • Coating: Polyester (PE) or fluorocarbon (PVDF) coatings are sprayed on the surface, providing UV resistance and color stability — ideal for outdoor applications like building facades.
  • Film Lamination: A thin PE protective film is attached to prevent scratches during transportation and installation.
• Slitting & Cutting: The polished aluminum coil is slit into coils of different widths or cut into sheets of specific sizes (e.g., 1220×2440mm) based on customer needs.

Common Alloys & Specifications

Alloys

Specifications

• Thickness: Coils usually range from 0.1mm to 3.0mm; sheets range from 0.2mm to 6.0mm.
• Width: Coils can be customized from 100mm to 1600mm; common sheet widths include 1220mm, 1500mm, and 1600mm.
• Length: Sheets are typically 2440mm, 3000mm, or customized; coils are supplied in rolls of 500-3000kg (depending on thickness).
• Reflectivity Grade:
  • Standard grade: 80-85% (for general decoration)
  • High-reflectivity grade: 86-90% (for lighting, signage)
  • Premium grade: ≥92% (for high-end furniture, automotive lighting)

Typical Applications

• Decorative Industry: Interior decoration (ceiling panels, wall cladding, elevator doors), furniture (cabinet doors, table tops), and exhibition stands — adding a sleek, modern aesthetic.
• Lighting Industry: Reflectors for LED lamps, stage lights, automotive headlights, and solar water heaters — maximizing light utilization with high reflectivity.
• Architectural Industry: Outdoor curtain walls, facade panels, and canopy cladding — combining aesthetics with weather resistance.
• Automotive & Transportation: Car trim, motorcycle fuel tanks, and train interior panels — lightweight and scratch-resistant.
• Household Appliances: Refrigerator doors, microwave ovens, and air conditioner panels — easy to clean and corrosion-resistant.
• Signage & Advertising: Light boxes, billboards, and logo plates — high visibility due to reflective properties.

Advantages Over Alternative Materials

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