FAQ
Expert Knowledge

Aluminum Panel FAQ

Professional answers from 18+ years of manufacturing experience — covering pricing, specifications, installation, fire ratings and more

How much does aluminum panel cost per square meter?

Factory-direct price for 3mm PVDF aluminum panel ranges from $25–$48/m² depending on alloy grade, coating system, and order volume. 2.5mm panels start around $22/m², while 4mm custom-shaped panels can reach $55/m². Custom colors, perforation, and small-batch orders incur additional cost. Contact us for a detailed project-specific quote.

What thickness aluminum panel for exterior wall?

For exterior curtain wall applications, 2.5mm–3.0mm is standard for flat panels (AA3003-H24 alloy). For large or perforated panels, 3.0mm–4.0mm is recommended to prevent oil-canning. Minimum 2.0mm for interior applications. Per GB/T 23443 and common GCC specifications, 3.0mm is the most widely specified thickness for exterior use.

What is the weight of 3mm aluminum panel per square meter?

3mm AA3003-H24 solid aluminum panel weighs approximately 8.1 kg/m² without coating. With PVDF 3-coat finish, add ~0.3 kg/m² for a total of ~8.4 kg/m². For comparison, 25mm honeycomb panels of equivalent rigidity weigh only 5.5–7.0 kg/m² — about 30% lighter.

PVDF coating vs powder coating — which is better for exterior?

PVDF (fluorocarbon) is superior for exterior use. PVDF lasts 15–25 years vs polyester powder 5–8 years in harsh climates. PVDF carbon-fluorine bonds (485 kJ/mol) resist UV/chemical attack far better than polyester C-C bonds (347 kJ/mol). Powder coating is 30–40% cheaper. Industry practice: use powder for interiors, PVDF for exteriors.

What fire rating does aluminum panel achieve?

Solid aluminum panels (2.5mm+) achieve A2-s1,d0 per EN 13501-1 and Class A per ASTM E84 — the highest fire ratings for cladding materials. This is critical for GCC high-rise projects where PE-core ACP (aluminum composite panel) is banned. Aluminum honeycomb panels also achieve A2-s1,d0 rating.

How to install aluminum curtain wall panels?

Standard installation uses the dry-hang method: (1) Install steel/aluminum sub-frame and keel system at 600mm intervals, (2) Attach angle-code brackets to keel, (3) Hang panels with screws/rivets through pre-drilled holes, (4) Apply weatherproof sealant between joints, (5) Install flashing and edge trims. We provide CAD shop drawings and installation guidance with every order.

How to choose a reliable aluminum panel manufacturer in China?

Five key criteria: (1) Verify ISO 9001:2015 certification and request audit reports, (2) Ask for QUV test reports (≥3000h for PVDF), (3) Request reference projects in your target market, (4) Confirm factory-direct pricing to avoid trading company markups of 20–40%, (5) Test with a sample order before committing to large volumes.

What is the difference between aluminum panel and ACP (aluminum composite panel)?

Solid aluminum panel is a single-layer aluminum sheet (2.0–4.0mm), achieving A2-s1,d0 fire rating. ACP has two thin aluminum skins (0.5mm) bonded to a PE or mineral core. PE-core ACP is banned in UAE high-rise buildings due to fire risk. Solid aluminum panels are specified where fire compliance is critical. ACP is cheaper but offers lower fire performance.

What is the minimum order quantity for aluminum panels?

Standard products: 50 m² minimum. Custom colors: 200 m² minimum. Sample panels available from 1 piece for project qualification. We welcome small-batch orders for trial projects and pre-qualification purposes.

How long does it take to produce aluminum panels?

7–30 days depending on complexity (flat < perforated < curved), quantity, coating system (powder faster than PVDF), and production schedule. Rush orders available with 5–7 day turnaround for standard specifications. PVDF 3-coat curing alone requires 24–48 hours.

What is honeycomb aluminum panel and when to use it?

Honeycomb aluminum panel has an aviation-grade aluminum honeycomb core sandwiched between two aluminum skins (total thickness 10–50mm). It is 70% lighter than solid aluminum of equivalent rigidity, offers superior flatness for large spans up to 2000×6000mm, and achieves A2-s1,d0 fire rating. Use it for: large ceiling spans, column covers, airport terminals, and projects where weight reduction is critical.

What alloys are used for architectural aluminum panels?

Three primary alloys: AA1100 (99% purity, excellent corrosion resistance, for interior/non-structural), AA3003-H24 (manganese alloy, good formability, the industry standard for curtain walls), AA5052 (magnesium alloy, higher strength, for marine/coastal applications). AA3003-H24 is the most commonly specified alloy for exterior facades.

Can aluminum panels be used in desert climates like Dubai?

Yes, PVDF-coated aluminum panels are specifically engineered for extreme desert climates. Our panels maintain color stability at 50°C+ with QUV 3000h test passing (ΔE ≤ 2.0). PVDF carbon-fluorine bonds resist the intense UV radiation that degrades polyester coatings within 24 months. We have supplied multiple projects in the UAE, Saudi Arabia, and Qatar.

What surface treatments are available for aluminum panels?

Four main options: (1) PVDF/Fluorocarbon — 70% resin, ≥25μm DFT, 15–25 year warranty for exterior use. (2) Polyester powder coating — 60–80μm, economical for interior applications. (3) Anodizing — natural silver/bronze finish, 15–20 year durability. (4) Wood grain heat transfer — 98% visual realism with A2 fire rating, 40+ species available.

What is the standard size of aluminum panel?

Standard maximum sheet size: 2000mm × 6000mm for flat panels. Common project sizes: 600mm–1200mm wide × 1200mm–3000mm tall. Custom sizes available within the maximum sheet dimensions. Larger panels reduce joint count but may require thicker gauge for flatness.

Surface Treatment Comparison

Property PVDF Polyester Powder Anodizing Wood Grain
Exterior durability15–25 years5–8 years15–20 years10–15 years
UV UV resistanceExcellentFairGoodGood
DFT≥25μm60–80μm12–25μm40–60μm
Fire ratingA2-s1,d0A2-s1,d0A1A2-s1,d0
Cost index1.3×1.0×1.5×1.2×

Solid Panel vs Honeycomb Panel

Property 3mm Solid 25mm Honeycomb
Weight~8.4 kg/m²~5.5 kg/m²
Max size2000×6000mm2000×6000mm
FlatnessModerate at large spansExcellent — virtually zero deflection
Fire ratingA2-s1,d0A2-s1,d0
CostLower1.8–2.5× solid
Best forStandard facadesLarge spans, column covers, ceilings

Regional Fire Code Compliance

Standard Region Required Rating Dalv Compliance
EN 13501-1Europe/Middle EastA2-s1,d0
ASTM E84USAClass A
GB 8624-2012ChinaA级
UAE Civil DefenceUAEClass A / A2
Saudi SBCSaudi ArabiaClass A

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