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2026
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What are the differences between solid aluminum panels and aluminum cladding panels
Solid aluminum panels and aluminum cladding panels (ACP) differ significantly in structure, performance, and application areas. The core differences lie in material composition, weather resistance, plasticity, and cost.
Material Structure and Composition Differences:
Solid Aluminum Panels: Made from pure aluminum or aluminum alloy sheets (1.5-4mm thick), processed with chromating and fluorocarbon coating, it is a single-layer metal structure with no plastic components.
Aluminum Composite Panels:Composed of two thin aluminum sheets (approximately 0.5mm thick) sandwiching a polyethylene (PE) or polyvinyl chloride (PVC) plastic core, it is a three-layer composite material.
Physical Performance Comparison:
. Mechanical Strength:
Solid Aluminum Panels: Tensile strength can reach 130N/mm², bending strength 84.2N/mm², excellent wind pressure resistance, suitable for high-rise buildings
Aluminum composite panels have a tensile strength of only 38-61 N/mm², making them prone to surface deformation due to core material expansion. They are mostly used in low-rise buildings.
. Fire resistance.
Solid aluminum panels are non-combustible materials (Class A fire resistance), with a fire resistance limit exceeding 1 hour.
Most aluminum cladding panels have a fire resistance rating of B1 (flame-retardant), with some high-quality products reaching Class A, but the core material still poses a risk of combustion.
. Weather resistance.
The fluorocarbon coating of solid aluminum panels can maintain its color for 25 years and has strong resistance to acid and alkali corrosion.
The weather resistance of aluminum cladding panels is approximately 10-15 years; long-term exposure to sunlight can easily cause surface blistering due to core material aging.
Construction and cost characteristics
. Processing performance.
Aluminum composite panels can be grooved and bent (bending radius ≥ 3mm), suitable for irregular shapes. 39
Solid aluminum panels require prefabrication of irregularly shaped parts in the factory; only simple edge bending (minimum bending radius ≥ 8mm) is supported on-site.
. Project Cost
The comprehensive unit price of aluminum cladding panels (product + installation) is approximately 120-300 yuan/㎡, suitable for projects with limited budgets.
The price of solid aluminum panels (product + installation) is approximately 300-600 yuan/㎡, but the total life cycle cost is lower.
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