ASTM A755 Wood Grain Prepainted Steel Coil Used For Indoor
Decoration Wall
Wood grain pre-painted steel coil is a high-performance coated
steel product featuring realistic
wood patterns printed on its surface. It combines the strength of
metal with the aesthetic appeal
of natural wood, making it ideal for architectural decoration,
furniture, and commercial applications.
Structure & Composition
Base Material:
Cold-rolled steel (CR), galvanized steel (GI), or aluminum-zinc
alloy-coated steel (AZ, e.g., Galvalume),
with thickness typically ranging from 0.3–1.2mm.
Coating System (from top to bottom):
Wood Grain Layer: Applied via thermal transfer or digital printing
(e.g., teak, oak, walnut patterns).
Topcoat: Polyester (PE), PVDF, or silicon-modified polyester (SMP)
for weather resistance.
Primer: Epoxy or polyurethane for adhesion and anti-corrosion.
Chemical Conversion Layer: Chromate or phosphate treatment for rust
prevention.
Key Features
Authentic Wood Aesthetics:
High-resolution printing/3D embossing replicates natural wood
grains without drawbacks like cracking or termite damage.
Superior Durability:
Corrosion Resistance: Base metal (e.g., AZ) + coating extends
service life to 15–25 years (vs. 5–10 years for natural wood).
Weather Resistance: PVDF topcoat ensures ΔE<5 color shift after
10+ years outdoors.
Lightweight & High Strength:
1/3 the weight of solid wood but with excellent bendability for
large-span applications (e.g., façades).
Eco-Friendly:
Formaldehyde-free, recyclable, and compliant with LEED/GREEN
BUILDING standards.
Applications
♦ Architecture:
Exterior cladding, interior wall panels, roofing tiles, trim.
♦ Furniture & Retail:
Cabinet surfaces, decorative partitions, hotel/office interiors.
♦ Industrial:
Elevator interiors, prefab houses, signage.
Comparison with Alternatives
| Property | Wood Grain Steel Coil | Natural Wood | PVC Wood Film |
| Lifespan | 15–25 years | 5–10 years (high maintenance) | 8–12 years (prone to aging) |
| Fire Rating | A2 (non-combustible) | B2 (flammable) | B1 (fire-retardant) |
| Maintenance | Paint-free, pest-resistant | Requires sealing/pesticides | Scratches easily |
| Sustainability | Recyclable, low carbon footprint | Deforestation concerns | Contains plasticizers |
