Aluzinc/Mg-Al-Zn Alloy Composite Panel Systems

Aluzinc (also known as Galvalume or AZ-coated steel) and Mg‑Al‑Zn (Zn‑Al‑Mg, sometimes marketed as ZAM) alloy composite panels combine the strength of steel with advanced corrosion‑resistant surface metallurgy. Available as single‑skin cladding or as insulated sandwich panels, these systems deliver long service life, excellent weather resistance and a premium metallic finish that suits modern architectural façades, industrial roofs and high‑performance building envelopes.

Why Choose Our Mg‑Al‑Zn/ Aluzinc Alloy Composite Panels?

We blend industry‑grade Aluzinc substrates with precise factory lamination to produce panels that meet demanding performance and aesthetic requirements. Our panels are engineered for fast installation, long service life and predictable thermal performance — backed by quality control, custom sizing and finish flexibility to suit architects and contractors.

• ·  Exceptional corrosion resistance — the Al‑Zn‑Si coating (typical composition ~55% Al / 43.4% Zn / 1.6% Si) forms a stable barrier that resists rust and extends service life compared with bare steel.

• ·  Upgraded alloy options (Zn‑Al‑Mg) — adding magnesium improves edge protection and cut‑edge corrosion resistance for harsher environments.

• ·  Lightweight, rigid sandwich construction — insulated panels (polyurethane, PIR or mineral wool cores) provide structural rigidity plus thermal and acoustic performance in a one‑step installation.

• ·  Thermal & solar performance — high reflectivity reduces heat gain; insulated variants lower HVAC loads and improve occupant comfort.

• ·  Aesthetic versatility — natural metallic finishes or color‑coated PVDF/PE finishes available; smooth, spangled or textured looks possible.

• ·  Fast installation & low life‑cycle cost — factory‑finished panels speed up construction and reduce on‑site labor and maintenance.

Technical Specifications

• ·  Coating composition: Aluzinc / Galvalume — 55% Al, 43.4% Zn, 1.6% Si. (Standard coatings available AZ35–AZ350; AZ150 is common for balanced durability.)

• ·  Substrate: Cold‑rolled low carbon steel (DX51D, S250GD, etc.)

• ·  Panel thickness (skins): 0.4mm – 1.0mm (depending on design and load requirements)

• ·  Sandwich core options: Polyurethane (PUR), Polyisocyanurate (PIR), Mineral wool (rockwool), EPS

• ·  Panel total thickness (insulated): 40mm – 200mm

• ·  Surface finishes: PVDF, Polyester (PE), SMP, anodized metallic look, or uncoated spangled Aluzinc

• ·  Standard lengths & widths: Custom‑cut to project — typical widths 600–1250mm; lengths to suit structural bays.

Benefits

• ·  Longevity in aggressive environments: Aluzinc’s aluminum barrier and zinc sacrificial protection slow corrosion — Zn‑Al‑Mg upgrades provide even better edge and cut protection for coastal or industrial atmospheres.

• ·  Lightweight strength: Compared to masonry or insulated block walls, composite sandwich panels dramatically reduce dead loads while maintaining structural stiffness.

• ·  Thermal insulation & energy savings: Insulated panels integrate the thermal layer and weather barrier into a single factory‑built component — reducing on‑site layers, trades and thermal bridging.

• ·  Fire performance options: Choose mineral wool cores for non‑combustible assemblies or certified PIR/PUR with tested reaction‑to‑fire ratings depending on code requirements.

• ·  Design freedom: Continuous metallic look, concealed fixings, and a wide color palette allow striking façades with clean lines and crisp profiles.

• ·  Low maintenance: Smooth metal finishes and corrosion‑resistant coatings minimize repainting and upkeep costs.

Applications

• ·  Commercial façades and rainscreens

• ·  Industrial cladding and roofing

• ·  Cold storage & refrigerated buildings (insulated sandwich panels)

• ·  Warehouses and logistics centres

• ·  Agricultural and light‑manufacturing facilities

• ·  Architectural feature walls and canopies

We offer factory color coating options (PVDF/FEVE/Paint), anodized metallic finishes, anti‑fingerprint passivation, and textured coatings. Accessories and ancillary items include flashings, eaves gutters, expansion joints, concealed clip systems and insulated flashings designed to maintain thermal continuity and aesthetic integrity.