1100 H14 Colour Coated Aluminium Coil is a pre-finished aluminum sheet/coil product made from AA1100 (commercially pure aluminum) in the H14 temper (half-hard), then coated with a durable paint system to deliver long-lasting color, corrosion resistance, and clean aesthetics. It is widely selected for architectural cladding, signage, ceilings, insulation jacketing, appliance panels, and decorative trims where customers want the forming friendliness of 1100 alloy with the visual consistency and protection of a factory-applied coating.
This product balances three essentials that buyers care about: stable appearance, reliable processing, and cost-effective corrosion performance in everyday environments.
What makes 1100 H14 colour coated coil different
AA1100 is known for its high aluminum purity, giving it excellent corrosion resistance and workability. The H14 temper adds strength through strain hardening, improving dent resistance and flatness compared with fully soft temper, while still allowing common bending and roll forming operations. Adding colour coating provides a controlled, repeatable finish that outperforms most post-painting methods for uniformity and throughput.
customer-visible advantages
- Uniform color and gloss across long coil lengths, supporting consistent façade and signage appearance
- Good formability for bends, channels, shallow draws, and profiles commonly used in building systems
- Corrosion resistance upgrade from coating plus naturally corrosion-resistant 1100 substrate
- Easy cleaning and maintenance, especially with PVDF and high-grade PE systems
- Lightweight panels that reduce handling and installation loads
AA1100 is often chosen when appearance, corrosion resistance, and fabrication matter more than high mechanical strength. In H14, the coil offers a practical "middle ground" that processors can slit, level, profile, and brake-form without the extreme softness of O temper.
Typical chemical composition (AA1100)
| Element | Typical / Max Content (%) |
|---|---|
| Aluminum (Al) | ≥ 99.00 |
| Silicon (Si) | ≤ 0.95 |
| Iron (Fe) | ≤ 0.95 |
| Copper (Cu) | ≤ 0.20 |
| Manganese (Mn) | ≤ 0.05 |
| Zinc (Zn) | ≤ 0.10 |
| Others (each) | ≤ 0.05 |
| Others (total) | ≤ 0.15 |
Note: Actual melt certificates vary by standard and supplier practice. For critical projects, confirm limits to ASTM B209 / EN equivalents as required.
Mechanical and physical performance snapshot
H14 temper improves handling durability, rigidity, and "in-service feel" compared with soft material-important for panels, trims, and formed parts that must stay crisp after installation.
Typical mechanical properties (1100 H14)
| Property | Typical Value |
|---|---|
| Temper | H14 (half-hard) |
| Tensile strength | 95–130 MPa |
| Yield strength | 80–110 MPa |
| Elongation (approx., depending on thickness) | 2–10% |
| Hardness (indicative) | ~35–45 HB |
Physical properties (AA1100)
| Property | Typical Value |
|---|---|
| Density | 2.71 g/cm³ |
| Thermal conductivity | ~220 W/m·K |
| Electrical conductivity | ~59% IACS |
| Coefficient of thermal expansion | ~23.6 µm/m·K |
Values are typical references used for engineering estimation; final performance depends on thickness, coating system, and forming radius.
Colour coating system: protection + design freedom
Colour coated coil is produced by continuous coil coating, where the aluminum is cleaned, chemically treated, primed, and top-coated under tightly controlled conditions. Customers benefit from coating consistency, repeatable film thickness, and reliable curing.
Common coating options
| Coating Type | Typical Use Case | Benefit |
|---|---|---|
| PE (Polyester) | Interior panels, ceilings, general-purpose cladding | Cost-effective, wide color range |
| SMP (Silicone Modified Polyester) | Exterior cladding, moderate weather | Better chalking/fade resistance than PE |
| PVDF (Fluorocarbon) | Premium architectural façades, harsh UV | Excellent long-term color retention |
Typical coating build (reference ranges)
| Layer | Typical Thickness |
|---|---|
| Top coat | 15–25 μm (PVDF often 20–25 μm) |
| Primer | 5–10 μm |
| Back coat / service coat | 5–10 μm (or per application) |
| Total dry film thickness | ~25–45 μm |
Surface finish choices
| Finish Item | Common Options |
|---|---|
| Gloss level | Matte, semi-gloss, high-gloss |
| Texture | Smooth, orange peel, embossed patterns |
| Color system | RAL / Pantone matching (project-dependent) |
| Protective film | Optional PE film for fabrication/transport |
Technical specifications (typical supply range)
Supply ranges vary by line capability and customer standards, but the following table reflects common orderable ranges for 1100 H14 colour coated coil.
| Parameter | Typical Range / Option |
|---|---|
| Alloy | 1100 |
| Temper | H14 |
| Thickness (metal) | 0.20–2.00 mm |
| Width | 600–1600 mm (custom slitting available) |
| Coil ID | 150 / 300 / 505 mm (commonly 505 mm) |
| Coil OD | Up to line/transport limit (often ≤ 1200–1600 mm) |
| Coating system | PE / SMP / PVDF |
| Coating structure | 2-coat 2-bake (typical), custom on request |
| Surface | One-side or two-side coated |
| Color tolerance | Per sample approval and production standard |
| Standards reference | ASTM B209 / EN 485 (substrate), coil coating specs by agreement |
Features customers notice during fabrication
Forming behavior
1100 H14 is friendly for roll forming, hemming, and brake bending when the bend radius is designed realistically. For tight radii, consult thickness-based bend guidelines and consider protective film to prevent tool marking.
Stable flatness and paint appearance
Half-hard temper supports flatter panels and cleaner lines, reducing "oil canning" risk compared with overly soft substrates in some geometries. The coating also masks minor handling marks better than mill finish.
Corrosion and stain resistance
AA1100 already performs well in many atmospheric environments. The coating system adds a barrier layer, particularly valuable in humid areas, light industrial zones, and coastal-adjacent applications when paired with the right pretreatment and paint selection.
Cleanability and branding
For signage, trims, and interior architectural elements, coil coating delivers consistent gloss and shade, helping brands maintain uniform storefront identity across multiple locations.
Applications: where 1100 H14 colour coated coil fits best
Building envelope and architectural trim
Used for fascia, soffit, rain-screen components, decorative bands, and edge trims where appearance matters and the forming is moderate. PVDF-coated variants are often specified for long-life façades.
Ceilings, partitions, and interior panels
PE-coated 1100 H14 is common in ceiling systems, interior cladding, and wall liners, offering a clean finish with efficient installation and straightforward maintenance.
Signage, display, and advertising panels
Excellent for channel letters backing, sign trays, lightbox structures, and decorative panels. The color-coated surface reduces secondary painting steps and supports sharp visual presentation.
Insulation jacketing and HVAC finishing
1100 alloy is a classic for insulation cladding due to corrosion resistance and formability. Color coating can be used for identification, improved appearance, and added surface protection.
Appliance and light industrial panels
Applied in covers, housings, and decorative skins where deep drawing is not severe but dent resistance and surface quality are important.
Selection guidance: choosing the right configuration
Quick selection table
| Priority | Recommended Choice |
|---|---|
| Best outdoor color retention | PVDF top coat + high-quality pretreatment |
| Cost-sensitive interior use | PE coating, standard primer/back coat |
| Moderate exterior exposure | SMP coating |
| Frequent forming operations | Protective film + smooth finish; confirm bend radius |
| Aesthetic texture or fingerprint masking | Textured coating or embossed substrate |
Quality and inspection points that matter
| Inspection Item | Why It Matters |
|---|---|
| Color match (ΔE) and gloss | Visual consistency across batches and lots |
| Film thickness | Corrosion resistance and durability depend on it |
| Adhesion (T-bend / crosshatch) | Prevents peeling at bends and edges |
| Cure performance | Ensures chemical resistance and long-term stability |
| Surface defects (pinholes, scratches) | Directly impacts appearance-grade applications |
| Coil edges and slitting quality | Reduces cracking and edge-corrosion initiation |
1100 H14 Colour Coated Aluminium Coil is a practical, appearance-forward material combining the corrosion resistance and workability of AA1100 with the strength balance of H14 temper and the durability and design flexibility of coil coating. It is especially strong for architectural trims, ceilings, signage, insulation jacketing, and general decorative panels, delivering consistent color, clean processing, and efficient project execution.
