Lacquered Aluminium Coil 3105 H18 840/900/1100mm Width for Building Roof Wall Panel

Product Overview

Our 3105 H18 lacquered aluminium coil is professionally tailored for the South America construction market, covering Chile, Peru, Brazil, Ecuador, and Colombia. Featuring popular 840mm, 900mm, and 1100mm standard widths, this color-coated aluminum coil delivers excellent formability, superior weather resistance, and long-term color stability. It serves as the core raw material for processing mainstream South American ondulado corrugated roofing sheets, exterior wall panels, building facade cladding, and decorative wall systems, fully adapting to South America’s high-UV, humid, and coastal saline climatic conditions.

Core Product Specifications

Basic Technical Parameters

Alloy Grade: 3105

Temper: H18 (high strength, rigid and durable)

Standard Width: 840mm / 900mm / 1100mm (South America mainstream ondulado roof and wall panel standard sizes)

Applicable Thickness: 0.14mm–1.2mm (customizable)

Surface Coating: PE / SMP / PVDF three optional coatings

Color Option: Full RAL color series, customized color matching available

Key Characteristics & Performance Advantages

Excellent Climate Adaptability for South America

Strong UV & Weather Resistance

Specially engineered for South America’s harsh climates, including intense year-round UV radiation, heavy seasonal rainfall, high humidity, and coastal salt spray. High-end PVDF and SMP coatings effectively resist fading, chalking, and coating peeling under strong sunlight and humid weather, maintaining stable appearance for ondulado roofing and exterior wall cladding and greatly extending building service life.

Superior Mechanical Performance

High Strength & Good Formability

3105 H18 aluminum alloy features balanced hardness and outstanding ductility. It supports bending, crimping, and roll forming for classic South American ondulado corrugated roof profiles, flat wall panels, and facade siding without coating cracking or surface deformation, perfectly matching local metal processing and on-site construction standards.

Reliable Anti-Corrosion Performance

Adapt to South American Coastal & Humid Inland Areas

The integrated lacquered protective layer isolates moisture, oxygen, and salt mist, providing excellent salt spray resistance and anti-rust performance. It perfectly adapts to coastal cities and humid inland construction environments across Chile, Peru, Ecuador, and Brazil, solving common corrosion and aging problems of traditional roof and wall metal materials.

Lightweight & Cost-Effective

Reduce Construction Load & Maintenance Cost

Lighter than traditional color steel coils, this lacquered aluminium coil effectively reduces structural load on residential and industrial roof and wall systems. Its excellent weather resistance minimizes later maintenance and replacement costs, delivering superior comprehensive cost performance for large-scale South American residential, industrial, and agricultural construction projects.

Main Applications in South America Market

Residential Building Materials

Ideal for South American residential projects, including villa ondulado corrugated roofing, household exterior wall cladding, roof flashings, and decorative facade panels. It maintains stable color and texture in high-UV and humid environments, matching local residential building aesthetic and durability requirements.

Commercial & Industrial Buildings

Widely applied in South America industrial warehouses, agricultural barns, factory roofing, commercial supermarket exterior wall cladding, and office building facade decoration. Standard 840/900/1100mm widths fully fit local mainstream processing equipment for ondulado roof sheets and wall panels, supporting mass production and efficient batch construction.

Quality & Certification Guarantee

All 3105 H18 lacquered aluminium coils are certified with ISO 9001 and SGS international testing reports, fully compliant with South American building material import and safety standards. Adopting automated rolling coating technology, the products feature uniform color, zero batch color difference, and stable quality, ensuring smooth customs clearance and long-term reliable use for local roofing and wall cladding projects.