High‑Performance Color-Coated Aluminum Strip for Modern Architectural & Industrial Use
Ding Aluminum Strip Panel Coated Color is a pre-painted aluminum strip panel designed for applications where lightweight, corrosion resistance, and color stability are critical. It combines a carefully controlled aluminum alloy substrate with a durable organic coating (e.g., PE, PVDF), delivered in strip or coil form for continuous processing or panel fabrication.
Typical formats:
- Coiled strip for continuous production lines
- Precision-cut panel strips for façade, ceilings, and cladding systems
- Custom colors based on RAL, Pantone, or customer samples
This product is engineered for architectural, transportation, appliance, and signage markets that demand both aesthetics and robust performance.
2. Features & Benefits
2.1 Core Features
- High color durability with UV- and weather-resistant coatings
- Excellent formability for bending, roll-forming, punching, and routing
- Superior corrosion resistance in urban, coastal, and industrial atmospheres
- Consistent thickness & color across long coil lengths
- Lightweight yet strong, ideal for large area coverage and suspended systems
- Environmentally friendly: recyclable aluminum substrate and low-VOC coating options
2.2 Benefits for Customers
| Benefit Category | What It Means for You | Practical Impact |
|---|---|---|
| Lower Maintenance | Long-lasting coatings, minimal repainting | Reduced lifecycle cost |
| Faster Installation | Pre-finished surface, no on-site painting | Shorter project schedules |
| Design Flexibility | Wide color/finish range, multiple gloss levels | Easier match to brand or architectural concepts |
| Lightweight System | Lower dead load compared to steel or solid cladding | Smaller supporting structures, easier handling |
| Process Efficiency | Supplied in coil/strip tailored to your equipment | Less scrap, faster throughput in downstream processing |
3. Typical Chemical Composition (Substrate Alloy)
Ding Aluminum Strip Panel Coated Color is typically produced from series 3000 or 5000 aluminum alloys (e.g., AA3003, AA3005, AA5005) optimized for forming and corrosion resistance. A representative composition (e.g., AA3003-type) is:
| Element | Symbol | Typical Range (wt. %) | Function |
|---|---|---|---|
| Aluminum | Al | Balance | Base metal, low density and good corrosion |
| Manganese | Mn | 1.0 – 1.5 | Strengthening, improves corrosion resistance |
| Magnesium | Mg | 0.1 – 0.3 | Enhances strength and strain hardening |
| Silicon | Si | 0.2 – 0.6 | Improves castability and strength |
| Iron | Fe | 0.3 – 0.7 | Solid solution strengthening |
| Copper | Cu | ≤ 0.2 | Minor strength increase; controlled for corrosion |
| Zinc | Zn | ≤ 0.1 | Controlled to avoid galvanic issues |
| Others | - | ≤ 0.15 (each), ≤ 0.50 (total) | Trace control elements |
Note: Specific alloy and composition can be adjusted according to project or standard (EN/AA/GB) requirements.
4. Coating System & Color Options
4.1 Coating Types
Ding color-coated aluminum strip is available with several standard coating systems:
| Coating Type | Typical Resin | Properties | Recommended Use |
|---|---|---|---|
| PE | Polyester | Good gloss, color variety, cost-effective | Interior, light exterior applications |
| HDPE | High-Durable PE | Improved chalking resistance, better UV | Exterior cladding, roofing in mild climates |
| PVDF | Polyvinylidene Fluoride (70% resin) | Outstanding UV, chalking, and color stability | High-end façades, coastal, industrial zones |
| FEVE | Fluoro-resin | High UV resistance with broader gloss range | Landmark buildings, signature color projects |
4.2 Coating Thickness & Finish
| Layer | Typical Thickness (µm) | Functions |
|---|---|---|
| Topcoat (PE / PVDF) | 20 – 25 | Color, weather resistance, chemical protection |
| Primer (Top Side) | 5 – 7 | Adhesion to aluminum, corrosion protection |
| Backcoat / Service Lacquer | 5 – 10 | Protection during processing and installation |
| Total Organic Coating (Top) | 25 – 32 |
Finishes available:
- Gloss: high-gloss, semi-gloss, matte
- Texture: smooth, micro-embossed, brushed effect, metallic, stone/wood imitation
- Color control: ΔE typically ≤ 1.5 (coil-to-coil, under standard conditions)
5. Technical Specifications
5.1 Dimensional Range
| Parameter | Typical Value / Range |
|---|---|
| Thickness (substrate) | 0.20 – 2.0 mm (standard: 0.3 – 1.2 mm) |
| Width | 20 – 1600 mm |
| Coil Inner Diameter | 405, 505, 508, 610 mm (on request) |
| Coil Outer Diameter | Max. 1600 mm (or per customer request) |
| Coil Weight | Up to 3–8 tons per coil (line-dependent) |
| Edge Condition | Mill or slit edge |
5.2 Mechanical Properties (Typical)
Values depend on alloy and temper (e.g., H14, H24). Representative data for a 3xxx alloy:
| Property | Typical Value (as-supplied) | Test Standard / Note |
|---|---|---|
| Tensile Strength, Rm | 150 – 220 MPa | EN / ASTM for relevant alloy and temper |
| Yield Strength, Rp0.2 | 80 – 180 MPa | |
| Elongation (A50) | ≥ 5 – 15 % | |
| Hardness (HB) | 40 – 65 HB | |
| Density | ~2.7 g/cm³ | Aluminum base metal |
5.3 Coating Performance
| Property | Typical Performance | Test Reference |
|---|---|---|
| Pencil Hardness | HB – 2H (depending on system) | ASTM D3363 |
| Adhesion (Cross Hatch) | 0 grade (no flaking) | ASTM D3359 |
| Impact Resistance | ≥ 9–10 J | ASTM D2794 |
| Bend Test | T-bend 2T (PVDF), 1T–2T (PE) | No cracking at rated bend |
| Gloss (at 60°) | 20–80 GU (per specification) | ASTM D523 |
| Salt Spray Resistance | ≥ 1000 h (PVDF), ≥ 500 h (PE) | ASTM B117, negligible blistering |
| UV / Weathering Resistance | Up to 20+ years (PVDF in typical climates) | QUV / natural exposure benchmarks |
6. Performance Characteristics
6.1 Corrosion & Weather Resistance
- Multi-layer coating system isolates aluminum from aggressive environments.
- PVDF/FEVE systems provide excellent resistance to:
- UV-induced chalking and fading
- Acid rain and industrial pollutants
- Coastal and marine environments
6.2 Formability & Processability
- Suitable for shearing, leveling, punching, bending, roll-forming, and CNC routing.
- Controlled coating flexibility ensures:
- Minimal risk of cracking at edges and bends (within recommended radius)
- Stable surface appearance through complex profiling
Recommended minimum internal bend radius (guideline):
| Alloy & Temper | Coating Type | Minimum Bend Radius (× thickness) |
|---|---|---|
| 3xxx, H14–H24 | PE | ≥ 1.0 T |
| 3xxx, H14–H24 | PVDF | ≥ 2.0 T |
7. Typical Applications
7.1 Architectural & Building Envelope
- Exterior wall cladding and façade strips
- Soffits, eaves, and ceiling systems
- Roof edge trims, guttering components, flashings
- Window and door trims, shutter profiles, roller doors
Benefits:
- Uniform color across large surfaces
- Resistance to chalking and discoloration
- Significantly lower weight compared with steel cladding
7.2 Interior Design & Fit-Out
- Linear metal ceilings
- Partition systems and decorative wall strips
- Interior signage and branding panels
Advantages:
- Clean, modern appearance in a wide color palette
- Easy cleaning and good stain resistance
- Good acoustic system integration when used with perforated strips and absorbers
7.3 Transportation & Industrial
- Body panels and interior strips for buses, trains, caravans
- Enclosures and doors for HVAC, electrical cabinets, telecom shelters
- Appliance components: refrigerator trim, cooker hood panels, control panels
points:
- Reduced vehicle and equipment weight
- Robust surface for frequent handling and cleaning
- Custom colors for brand differentiation
7.4 Signage & Branding
- Retail signage backing strips
- Directional and information boards
- Corporate identity panels and canopy strips
Value:
- High color consistency for brand standards
- Good printability on the coated surface
- Stable appearance under outdoor exposure
8. Quality Control & Standards
Ding Aluminum implements stringent quality control systems, typically aligned with:
- ISO 9001 – Quality Management
- ISO 14001 – Environmental Management
- Relevant EN / ASTM / GB standards for:
- Aluminum alloy chemistry and mechanical properties
- Coating thickness, adhesion, and durability
- Dimensional tolerances and flatness
inspection items:
| Control Item | Method / Standard Example |
|---|---|
| Thickness tolerance | EN/ASTM gauge checks |
| Width & edge quality | Continuous optical / manual check |
| Color & gloss | Colorimeter, gloss meter |
| Coating thickness | Magnetic or eddy-current gauges |
| Surface defects | 100% visual inspection in line |
9. Customization Options
Ding Aluminum Strip Panel Coated Color can be tailored to your application:
- Alloy & temper: 1xxx, 3xxx, 5xxx series per forming and strength needs
- Coating type: PE, HDPE, PVDF, FEVE, or special-purpose layers
- Color & gloss: RAL/Pantone matching, matte to high gloss
- Surface structure: embossing for anti-fingerprint or decorative effects
- Dimensions: thickness, width, coil weight, and packaging optimized for your process
10. Product Selection Guidelines
To choose the optimal configuration, consider:
| Application Scenario | Recommended Alloy / Coating | Notes |
|---|---|---|
| High-end exterior façade in coastal city | 3xxx / 5xxx + PVDF (25 µm) | Max weather resistance & color stability |
| Standard commercial cladding (inland) | 3xxx + HDPE or PVDF | Balance of cost and performance |
| Interior ceilings and partitions | 1xxx / 3xxx + PE (20 µm) | Cost-effective, good aesthetics |
| Appliance & equipment panels | 3xxx + PE / HDPE | Good formability, broad color choice |
| Signage and branding elements | 3xxx + PE / PVDF | Depends on exposure duration and UV load |
By combining engineered aluminum alloys, high-performance coatings, and tight process control, Ding Aluminum Strip Panel Coated Color offers a reliable, attractive, and cost-effective solution for a wide range of architectural and industrial applications.
