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Aluminum Foil Coil
1. Product Overview
Aluminum foil coil is a thin sheet coil material made from high-purity aluminum through multiple rolling processes, with thickness typically ranging from 0.006mm to 0.2mm. It features excellent moisture-proof, light-proof, thermal insulation, and electrical conductivity properties. With smooth surface and soft texture, it's easy to process. As an important material for packaging, electronics, construction, and consumer goods industries, it can be further processed through slitting, laminating, and printing to meet various application requirements.
2. Key Features
（1）Excellent Barrier Properties
Aluminum foil coil provides perfect moisture-proof, anti-oxidation, and UV protection functions, effectively blocking water, oxygen, and light. Its dense metal structure offers 100% barrier effect, ensuring contents are protected from external environmental influences and extending product shelf life.
（2） Superior Thermal & Electrical Properties
Aluminum foil coil exhibits excellent thermal reflectivity and conductivity, while being an excellent conductive material. With thermal reflectivity over 95%, it effectively maintains temperature stability and provides reliable electromagnetic shielding and conductive functions in electronic applications.
（3） Outstanding Flexibility & Processability
Aluminum foil coil has soft texture, easily processed through slitting, stamping, laminating, printing, and other methods. Its good ductility allows complex shape forming without cracking, suitable for high-speed automated production lines.
（4）Hygienic Safety & Environmental Sustainability
Aluminum foil coil meets food contact material standards, non-toxic and odorless, won't contaminate contents. 100% recyclable, complying with environmental requirements, making it a green alternative to plastic packaging.
Parameter | Specification Range | Standard / Notes |
Alloy Grade | 1060, 1070, 1100, 1235, 8011, 8021 | GB/T 3198, ASTM B479 |
Temper | O (Annealed), H14, H16, H18, H19 | - |
Thickness | 0.006mm - 0.20mm | ±5% tolerance |
Width | 100mm - 1600mm | Custom widths available |
Core Inner Diameter | 76mm, 152mm, 200mm | Standard sizes |
Coil Outer Diameter | 300mm - 1200mm | Maximum 1500mm |
Surface Finish | One side bright, Two side bright, Matte | - |
Tensile Strength | 50 MPa - 200 MPa | ASTM E8 |
Elongation | 1% - 25% | Varies by temper |
Pinhole Quantity | ≤50 pcs/m² (for 0.01mm thickness) | Visual inspection |
Surface Oil Content | 50-200 mg/m² | For processing lubrication |
Flatness | ≤2mm/m | For thickness ≥0.01mm |
4. Application Scenarios
(1)Food & Pharmaceutical Packaging
Used for sealed packaging of chocolate, dairy products, pharmaceuticals, as well as fast food containers and beverage packaging. The barrier properties ensure hygiene and safety, preventing moisture damage and oxidation, extending shelf life.
(2)Electronic & Electrical Industry
Applied in capacitor electrodes, lithium battery packaging, cable shielding, and heat exchangers. The conductivity and electromagnetic shielding properties protect electronic components while ensuring stable electrical performance.
(3) Construction & Insulation Materials
Used in building insulation layers, ventilation ducts, and roofing waterproof materials. The thermal reflectivity effectively regulates indoor temperature, improves energy efficiency, while providing moisture protection.
5. FAQs
Q1: What is the thinnest thickness of the aluminum foil roll?
A1: Standard minimum thickness is 0.006mm, special processes can produce 0.0045mm ultra-thin foil. Thickness selection depends on application: 0.006-0.009mm for food packaging, 0.01-0.05mm for industrial uses.
Q2: How can aluminium foil rolls ensure hygiene and safety?
A2: Using food-grade aluminum alloy raw materials, production environment complies with GMP standards. Products undergo high-temperature annealing, surface is clean and sterile, meeting FDA and GB 4806 food contact material safety standards.
Q3: What are the storage requirements for aluminum foil rolls?
A3: Should be stored in dry, ventilated indoor environment, temperature 15-30℃, relative humidity ≤65%. Avoid contact with corrosive substances like acids and alkalis, stacking height should not exceed 5 layers to prevent deformation.
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