Component

Technical Specifications

Application-Specific Material Options

Face Aluminum Layers

Alloy Grades: 3003/3005/3105 (food-safe, corrosion-resistant primary grades); 5052 (high-strength variant); 1060 (soft-forming variant)Thickness per Side: 0.20–0.50 mm (mass production standard: 0.30 mm)Surface Treatment: PE (Polyester) coating (18–25 μm) / PVDF coating (25–40 μm) / Water-based PE coating (low-VOC, food-contact grade)

- 3003 alloy: General-purpose panels (refrigerators, air conditioners)- 5052 alloy: High-rigidity panels (washing machine casings, heavy-duty appliance shells)- PVDF coating: Long-life, UV-resistant panels (outdoor/kitchen high-humidity appliances)

Core Material

Primary Types: Polyethylene (PE) core / Fire-Retardant PE (FR-PE) core / Mineral-filled core (A1/A2 fire rating)Density: 1.25–1.45 g/cm³Adhesive: High-strength thermosetting adhesive (bonding strength ≥2.5 MPa)

- PE core: Cost-effective general appliances (microwave ovens, small kitchen appliances)- FR-PE core: High-safety appliances (built-in ovens, dishwashers, GB 8624 B1 fire rating)- Mineral core: High-temperature appliances (commercial ovens, A1/A2 fire rating)

Protective Layer

Base Protection: PE protective film (anti-scratch, 0.05–0.08 mm) + waterproof kraft paper + export cartonEnhanced Protection: Anti-fingerprint PE film / anti-scratch nano-coating (for high-touch panels)

- Standard protection: Mass production logistics/stamping- Enhanced protection: High-end appliance panels (refrigerator doors, washing machine exteriors)

Performance Category

Technical Parameter

Standard Value (Test Standard)

Customizable Threshold (Application Scenario)

Physical Properties

Panel Thickness

3.0 mm (small appliances) / 4.0 mm (large appliances, mainstream) / 5.0–10.0 mm (heavy-duty)

2.5 mm (ultra-light small appliances) / 12.0 mm (custom large appliance shells)

Unit Area Weight

≤6.0 kg/m² (3mm) / ≤7.5 kg/m² (4mm) / ≤9.0 kg/m² (5mm) (GB/T 4472-2011)

≤5.0 kg/m² (portable appliances) / ≤8.0 kg/m² (large high-rigidity appliances)

Thermal Conductivity

≤0.035 W/(m·K) (PE core) / ≤0.030 W/(m·K) (mineral core) (GB/T 10294-2008)

≤0.025 W/(m·K) (energy-saving refrigerator panels) / ≤0.020 W/(m·K) (oven thermal insulation panels)

Flatness Tolerance

≤0.5 mm/m (GB/T 1184-1996)

≤0.3 mm/m (high-precision small appliance panels)

Mechanical Performance

Tensile Strength (Aluminum Layer)

≥120 MPa (3003 alloy) / ≥150 MPa (5052 alloy) (GB/T 228.1-2010)

≥90 MPa (1060 soft alloy, small parts) / ≥160 MPa (high-strength custom alloy)

Bending Performance

Minimum Bending Radius = 2×Panel Thickness (no coating crack/peel, GB/T 232-2010)

1.5×Panel Thickness (complex curved panels, e.g., washing machine drums)

Impact Resistance

≥4 J (drop weight test, GB/T 1043.1)

≥6 J (heavy-use appliances, dishwashers) / ≥3 J (light small appliances)

Environmental Durability

Corrosion Resistance (Salt Spray)

≥1000 h (PE coating) / ≥1500 h (PVDF coating) (GB/T 10125-2021)

≥2000 h (kitchen high-humidity/acidic environment appliances)

High-Temperature Resistance

≤120°C (PE core) / ≤150°C (FR-PE core) / ≤250°C (mineral core)

≤180°C (FR-PE custom core, microwave ovens) / ≤300°C (mineral core, commercial ovens)

Coating Adhesion

≥4B (cross-cut test, GB/T 9286-1998)

≥5B (high-adhesion coating, frequent-touch panels)

Safety Compliance

Food-Contact Safety

Complies with FDA 21 CFR §175.300 / EU REACH (EC) No. 1907/2006 / GB 4806.9-2016

Strict food-contact grade (GB 4806.9) for kitchen appliance panels (no harmful substance precipitation)

Fire Rating

B1 (FR-PE core, GB 8624-2012) / A1/A2 (mineral core, GB 8624-2012)

A2 grade (built-in high-temperature appliances, EU EN 13501)

Appliance Type

Core Technical Advantages

Refrigerators/Air Conditioners

- Low thermal conductivity (≤0.035 W/(m·K)) improves energy efficiency (8–12% power consumption reduction)- High corrosion resistance (≥1500 h salt spray) resists condensation/kitchen humidity

Washing Machines

- High rigidity (5052 alloy option) reduces panel deformation during transportation/use- Anti-fingerprint coating minimizes cleaning frequency for end-users

Ovens/Microwaves

- FR-PE/mineral core meets high-temperature safety requirements (≤150°C/≤250°C)- High heat resistance prevents coating deformation under thermal cycling

Small Kitchen Appliances

- Food-contact safety compliance (FDA/GB 4806.9) for direct food contact surfaces- Lightweight design (≤5.0 kg/m²) reduces appliance overall weight