High-quality 3003 polyester coated aluminum coil offers excellent corrosion resistance, color retention, and long-lasting performance for architectural and industrial applications.
3003 polyester coated aluminum coil is one of the most widely used pre-painted aluminum materials in the construction, transportation, appliance, and advertising industries.
By combining the excellent corrosion resistance and formability of 3003 aluminum alloy with the decorative and protective properties of polyester (PE) coating, manufacturers obtain a lightweight, durable, and cost-effective material suitable for both indoor and outdoor applications.
Compared with traditional galvanized steel, polyester-coated aluminum offers significant advantages in weight reduction, corrosion resistance, color stability, and recyclability.
The density of aluminum is only approximately 2.73 g/cm³, nearly one-third that of steel (7.85 g/cm³), enabling substantial savings in transportation and installation costs.
Modern coil-coating technology allows polyester coatings to achieve excellent adhesion, flexibility, impact resistance, and weather durability.
Depending on environmental conditions, properly manufactured PE-coated aluminum coils can provide a service life of 10–20 years or more, making them a preferred solution for roofing systems, wall cladding, ceiling panels, appliance casings, and decorative architectural applications.
3003 Polyester Coated Aluminum Coil
3003 polyester coated aluminum coil is aluminum coil coated through a continuous coil-coating process.
The aluminum substrate provides mechanical support, while the polyester coating provides decorative color and surface protection.
3003 aluminum is a 3xxx series aluminum-manganese alloy. It is not heat-treatable, but it can be strengthened through cold working.
Public alloy references describe 3003 as a general-purpose alloy with moderate strength, good workability, and good corrosion resistance.
It is commonly used in sheet metal products such as roofing, siding, gutters, downspouts, containers, signs, and decorative panels.
Compared with 1050 or 1100 pure aluminum, 3003 has better strength because manganese acts as the main alloying element.
This makes it more suitable for formed panels, cladding sheets, and products that need better dent resistance.
| Element | Typical Content | Function |
| Aluminum | Balance, generally about 96.8-99% | Lightweight base metal |
| Manganese | 1.0-1.5% | Improves strength and structural stability |
| Copper | 0.05-0.20% | Slightly improves strength |
| Iron | ≤0.70% | Controlled impurity affecting surface and properties |
| Silicon | ≤0.60% | Controlled impurity affecting formability and appearance |
| Zinc | ≤0.10% | Controlled for corrosion stability |
| Others | ≤0.15% total | Controlled for consistency |
The manganese content is the key reason 3003 performs better than commercially pure aluminum in many coated coil applications.
High-gloss white 3003 PE Coated Aluminum Coil
Polyester coating (PE coating) is an organic coating system based on polyester resin technology.
It is one of the most widely used coil coating materials because it offers an excellent balance between performance and cost.
Key Characteristics of Polyester Coatings
Typical Coating Thickness
| Layer | Thickness |
| Primer | 5–7 μm |
| Top Coat | 15–25 μm |
| Back Coat | 5–10 μm |
The total coating system thickness generally ranges from: 20–35 μm depending on project requirements.
The combination of 3003 aluminum alloy and polyester coating creates a synergistic performance advantage.
Benefits of the Aluminum Substrate
The aluminum core provides:
Benefits of the Polyester Coating
The coating contributes:
Combined Advantages
The finished product offers:
| Property | Benefit |
| Low Weight | Easy transportation and installation |
| Corrosion Resistance | Long service life |
| Decorative Appearance | Wide color options |
| Formability | Easy bending and profiling |
| Cost Efficiency | Lower lifecycle costs |
This combination explains why 3003 polyester coated aluminum coil has become one of the most popular materials in the architectural and industrial sectors.
A standard polyester coated aluminum coil usually includes several layers:
| Layer | Function |
| Aluminum substrate | Provides strength, shape, and formability |
| Chemical pretreatment | Improves paint adhesion and corrosion resistance |
| Primer layer | Enhances bonding and barrier protection |
| Polyester topcoat | Provides color, gloss, weather resistance, and surface finish |
| Back coat | Protects the reverse side and improves processing stability |
The pretreatment and primer layers matter as much as the topcoat. A bright color cannot compensate for weak adhesion or poor pretreatment.
Ceiling Used PE Coated Aluminum Coil
Typical polyester coating systems often use:
| Coating Position | Common Thickness Range |
| Front coating | 15-25 μm |
| Back coating | 5-10 μm |
| Primer | Usually included within the total system or specified separately |
For indoor panels, a thinner coating may be enough. For outdoor cladding, roofing, or gutters, buyers usually specify higher coating thickness and stronger weathering requirements.
| Coating Type | Main Advantages | Limitations | Best-fit Use |
| Polyester / PE | Economical, colorful, good formability, easy processing | Moderate UV and weather resistance | Interior panels, signage, ceilings, moderate outdoor use |
| PVDF | Excellent UV resistance and long-term weatherability | Higher cost | Premium exterior architecture |
| HDP | Better weather resistance than standard PE | Higher cost than PE | Outdoor building panels |
| SMP | Good hardness and weathering | Less flexible than standard PE in some systems | Roofing and wall panels |
| Epoxy | Strong adhesion and corrosion protection | Poor UV resistance | Back coat, primer, indoor protection |
Polyester is not always the longest-lasting coating, but it often offers the best balance of appearance, processing, and cost for general applications.
| Parameter | Typical Requirement |
| Product name | 3003 polyester coated aluminum coil |
| Alloy | 3003 |
| Temper | O, H14, H16, H24, H26, or customized |
| Thickness | Customized by application |
| Width | Customized |
| Coating type | Polyester / PE coating |
| Front coating thickness | Usually 15-25 μm or customized |
| Back coating thickness | Usually 5-10 μm or customized |
| Surface finish | Smooth, matte, high gloss, embossed, textured |
| Color | RAL, Pantone, or custom color |
| Gloss | Matte, semi-gloss, high gloss |
| Packaging | Moisture-proof export packaging |
| Documents | MTC, coating test report, color and gloss data |
The popularity of 3003 polyester coated aluminum coil is driven by its combination of structural performance and surface protection.
Corrosion resistance is one of the most important advantages of coated aluminum products.
Dual Protection Mechanism
The material benefits from:
Even if the coating experiences minor surface damage, the aluminum substrate continues to provide corrosion resistance through its stable oxide layer.
Performance Data
Salt spray testing often exceeds:
500–1000 hours
without significant substrate corrosion, depending on coating thickness and pretreatment quality.
Huawei Packaged 3003 PE Coated Aluminum Coil
Compared with steel-based products, aluminum offers significant weight savings.
Density Comparison
| Material | Density (g/cm³) |
| Aluminum | 2.73 |
| Galvanized Steel | 7.85 |
| Stainless Steel | 8.00 |
This means aluminum weighs approximately: 65% less than steel for the same volume.
Benefits
3003 aluminum is known for its excellent forming characteristics.
Suitable Fabrication Processes
The polyester coating remains intact during fabrication due to its excellent flexibility and adhesion.
Typical Bend Performance
High-quality PE-coated coils can withstand: T-bend values of 0–2T without coating cracking.
A major reason for using polyester-coated aluminum is its decorative versatility.
Available Finishes
Color Consistency
Advanced coil-coating systems maintain color variation within: ΔE ≤ 1.0–2.0 ensuring visual uniformity across large projects.
Polyester coatings provide reliable weather performance in most outdoor environments.
Resistance To
Under normal environmental conditions, PE-coated aluminum can maintain attractive appearance for: 10–20 years with minimal maintenance.
Compared with premium coating systems such as PVDF, polyester coatings provide an excellent balance between performance and cost.
Economic Advantages
This makes PE-coated aluminum ideal for large-scale construction projects where cost control is critical.
Sustainability has become a major consideration in material selection.
Environmental Benefits
Recycling aluminum requires approximately: 95% less energy than producing primary aluminum from bauxite ore.
This significantly reduces the environmental footprint of construction projects.
3003 PE Coated Aluminum Coil for Construction
Weather resistance determines the long-term appearance and durability of coated aluminum products used outdoors.
Modern polyester coating systems have undergone significant improvements in resin chemistry, pigment technology, and curing processes.
Ultraviolet radiation is one of the primary causes of coating degradation.
Modern architectural polyester coatings contain:
These additives significantly extend coating life.
After accelerated weathering tests:
depending on exposure conditions.
Moisture can penetrate poorly designed coating systems and initiate corrosion.
The PE coating acts as an effective barrier against:
Combined with aluminum’s natural corrosion resistance, this provides excellent long-term protection.
For coastal and industrial environments, salt resistance is especially important.
| Coating System | Salt Spray Resistance |
| Standard PE | 500–1000 Hours |
| Premium PE | 1000–1500 Hours |
| PVDF | 1500–3000 Hours |
This level of protection is sufficient for most commercial and residential applications.
PE-coated aluminum performs well across a broad temperature range.
Short-term exposure can often exceed these limits without significant coating damage.
The aesthetic value of coated aluminum depends on maintaining color stability.
| Environment | Expected Service Life |
| Mild Rural | 15–20 Years |
| Urban | 10–15 Years |
| Coastal | 8–12 Years |
| Industrial | 8–10 Years |
Actual performance depends on coating quality, climate, and maintenance practices.
| Property | PE | SMP | HDP | PVDF |
| UV Resistance | Good | Good | Very Good | Excellent |
| Color Retention | Good | Good | Very Good | Excellent |
| Chalk Resistance | Good | Good | Very Good | Excellent |
| Outdoor Durability | 10–20 Years | 10–15 Years | 15–25 Years | 20–30 Years |
| Cost | Low | Medium | Medium-High | High |
Production of Polyester Coated Aluminum Coil
Aluminum substrate production
The mill produces 3003 aluminum coil through casting, hot rolling, cold rolling, annealing, and temper control.
Degreasing and cleaning
The coil surface is cleaned to remove rolling oil, dust, and metal fines.
Chemical pretreatment
Pretreatment improves corrosion resistance and coating adhesion.
Primer coating
A primer layer enhances bonding between the aluminum surface and polyester topcoat.
Polyester topcoat application
The coating line applies polyester paint through roller coating. Color, viscosity, coating weight, and film thickness are controlled.
Oven curing
Controlled curing allows the coating to crosslink and develop adhesion, hardness, gloss, and flexibility.
Back coating
The reverse side may receive a protective back coat, usually thinner than the front coating.
Cooling, inspection, and rewinding
The coated coil is cooled, inspected, and rewound under controlled tension.
Slitting and packaging
The coil can be slit to width and packed with moisture-proof, scratch-resistant protection.
3003 polyester coated aluminum coil is widely used in construction, decoration, signage, home appliances, HVAC systems, packaging, and general industrial fabrication.
Its popularity comes from the combination of 3003 aluminum alloy’s formability and corrosion resistance with polyester coating’s color variety, gloss control, surface protection, and cost efficiency.
Because polyester coating provides moderate weather resistance and good decorative performance, this material works especially well in indoor applications, sheltered outdoor environments, and general architectural products that need attractive color and reliable processing performance.
Reefer Van Used 3003 Polyester Coated Aluminum Coil
3003 polyester coated aluminum coil is commonly processed into roofing sheets, wall panels, corrugated panels, and profiled cladding.
The 3003 substrate provides better strength than pure aluminum, while the polyester coating offers color and surface protection.
For building envelope applications, it helps provide:
Ceiling panels require light weight, flatness, clean surface appearance, and stable color.
3003 polyester coated aluminum coil works well for suspended ceilings, perforated ceilings, strip ceilings, and decorative interior panels.
Common products include:
Aluminum composite panels, or ACP panels, often use coated aluminum skins bonded to a core material.
3003 polyester coated aluminum coil can serve as the surface skin for decorative ACP products, especially for interior and general exterior uses.
Its advantages in ACP production include:
For premium exterior curtain walls, PVDF-coated aluminum is usually preferred because of stronger long-term UV resistance.
Signage manufacturers value 3003 polyester coated aluminum coil because it can be cut, bent, punched, printed, and laminated easily.
Its color-coated surface supports attractive visual presentation for advertising and traffic-related products.
Typical signage applications include:
For signs exposed to strong sunlight, coating thickness, pigment quality, and UV resistance should be specified carefully.
Rainwater systems need corrosion resistance, formability, and coating flexibility.
3003 polyester coated aluminum coil can be roll formed into gutters, downspouts, elbows, flashing, and drainage accessories.
The material helps manufacturers achieve:
For garage doors, rolling shutters, and exterior closure systems, the material must combine formability, color stability, and surface durability.
3003 polyester coated aluminum coil can be formed into slats, profiles, panels, and frames.
Useful features include:
3003 polyester coated aluminum coil can be used for HVAC insulation jacketing, pipe covering, duct cladding, and protective insulation facings.
In these applications, aluminum provides corrosion resistance and light weight, while the coating improves appearance and surface protection.
Typical uses include:
The coating should be selected according to moisture exposure, indoor/outdoor conditions, and installation environment.
For home appliances and furniture, coated aluminum provides a clean, modern, and lightweight surface.
Polyester coated aluminum coil can be used in panels that require color consistency and moderate scratch resistance.
Potential uses include:
In these applications, surface appearance, coating hardness, stain resistance, and color matching are especially important.
In selected packaging and light industrial applications, 3003 polyester coated aluminum coil can be used where formability, surface protection, and moderate strength are required.
However, if the material contacts food, the coating must meet food-contact requirements.
Possible applications include:
3003 polyester coated aluminum coil can also be used in transportation and van-related applications, especially for lightweight decorative panels, interior linings, side panels, roof panels, partition panels, and non-structural body components.
The 3003 aluminum substrate provides good formability and corrosion resistance, while the polyester coating offers color, gloss, and surface protection for visible vehicle surfaces.
Typical applications include:
| Application | Why 3003 Polyester Coated Aluminum Coil Works | Key Requirement |
| Van interior wall panels | Lightweight, clean surface, easy forming | Scratch resistance, easy cleaning, coating adhesion |
| Van ceiling panels | Low weight and decorative finish | Flatness, color consistency, corrosion resistance |
| Truck body decorative panels | Color-coated appearance and moderate strength | Surface durability and weather resistance |
| Trailer side lining | Good corrosion resistance and roll-forming ability | Coating flexibility and dimensional stability |
| Refrigerated van inner panels | Smooth coated surface and moisture resistance | Hygienic surface, coating integrity, corrosion protection |
| Service vehicle partitions | Easy cutting, bending, and installation | Rigidity, edge quality, surface protection |
| Bus and coach interior panels | Lightweight and decorative surface | Color consistency, clean finish, forming performance |
| Cargo van roof or side skins | Lightweight panel material for selected non-structural uses | Weather resistance, coating adhesion, panel flatness |
Selecting the right material for construction, transportation, and industrial applications requires balancing performance, durability, appearance, and cost.
While 3003 polyester coated aluminum coil is widely used, alternative materials such as galvanized steel, stainless steel, PVDF-coated aluminum, and 5052 coated aluminum are also available.
| Property | 3003 PE Coated Aluminum | PVDF Coated Aluminum | Galvanized Steel | Stainless Steel 304 | 5052 Coated Aluminum |
| Density (g/cm³) | 2.73 | 2.73 | 7.85 | 8.00 | 2.68 |
| Weight Advantage | Excellent | Excellent | Poor | Poor | Excellent |
| Corrosion Resistance | Very Good | Excellent | Moderate | Excellent | Excellent |
| Weather Resistance | Good | Outstanding | Moderate | Excellent | Excellent |
| Formability | Excellent | Excellent | Good | Moderate | Good |
| Surface Appearance | Excellent | Premium | Good | Premium | Excellent |
| Color Options | Extensive | Extensive | Limited | Limited | Extensive |
| UV Resistance | Good | Excellent | Moderate | Excellent | Excellent |
| Maintenance Cost | Low | Very Low | Moderate | Low | Low |
| Recyclability | 100% | 100% | 100% | 100% | 100% |
| Typical Outdoor Service Life | 10–20 Years | 20–30 Years | 5–15 Years | 20+ Years | 15–25 Years |
| Relative Material Cost | Low-Medium | High | Low | Very High | Medium-High |
Henan Huawei Aluminum Co., Ltd. supplies aluminum sheet, coil, strip, foil, and coated aluminum products for construction, decoration, packaging, transportation, and industrial applications.
For buyers of Huawei 3003 polyester coated aluminum coil, the main value lies in specification customization, color support, coating control, and export packaging.
Huawei can support buyers with:
Before ordering, buyers should provide application environment, thickness, width, temper, coating thickness, color code, gloss level, bending requirement, and expected durability target.
3003 polyester coated aluminum coil is a versatile coated aluminum material that combines the strength and formability of 3003 Al-Mn alloy with the decorative and protective value of polyester coating.
It offers a strong cost-performance balance for roofing, cladding, ceilings, signage, composite panels, gutters, decoration, and general industrial use.
The best results come from matching the coil to the application. For indoor and moderate outdoor environments, polyester coating provides an economical and attractive solution.
For severe UV, coastal, or premium architectural projects, buyers should consider higher-performance coating systems such as PVDF or HDP.
It is pre-painted aluminum coil made from 3003 Al-Mn alloy and coated with polyester resin paint for color, protection, and decorative performance.
Yes. 3003 contains manganese, usually around 1.0-1.5%, which gives it higher strength than commercially pure aluminum grades such as 1100.
Yes, it can be used outdoors in moderate environments. For severe UV, coastal, or long-life architectural use, PVDF or HDP coating may be more suitable.
Common front coating thickness is about 15-25 μm, while back coating is often about 5-10 μm, depending on specification.
Yes. 3003 has good formability, and polyester coating can support bending when the temper, coating system, and bending radius are properly selected.
Colors can usually be produced according to RAL, Pantone, or customer samples. Gloss can also be customized.
Polyester coating is more economical and suitable for general use. PVDF coating offers much better UV and weather resistance but costs more.
Store it in a dry, clean warehouse. Avoid moisture, condensation, corrosive chemicals, direct scratches, and package damage before processing.
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アルミハニカムパネルについてお聞きしたいのですが L1500×W700×厚みで曲げに対して200kgg耐えられるには厚みはどのくらいでしょうか ※簡単に言いますと約1000mmの側溝に渡して真ん中で200kg耐えられるかという事になります 又、そのような製品があるようでしたらその重量、価格をおしえていただけますか 現在はコンパネ板を使用してますが腐ると折れてしまい人が側溝に落ちてけがをしてます 出来ましたらメールでお返事をいただけますか
アルミハニカムパネルについてお聞きしたいのですが L1500×W700×厚み で曲げに対して200kgg耐えられるには厚みはどのくらいでしょうか ※約1000mmの側溝に渡して200kg耐えられるかとなります その製品の重量、価格をおしえていただけますか
Hi, do you have laser-engraved black anodized aluminum certified for outdoor use?
Sehr geehrte Damen und Herrn, Wir sind auf der Suche nach Oxidiertenm Aluminium Platten material für einen Architektenentwurf den wir anbieten. Die Architektin möchte "altes und Oxidiertes" Alu Materail einsetzten um den Vintage-Look ihres Entwurfs zu ergänzen (mit Vintage Spiegeln optik wie alte Spiegel die zum teil "blind" sind! Wir würden uns freuen wenn sie uns bei diesem Thema unterstützen könnten. Mit freundlichen Grüßen aus Düsseldorf, Oliver Erkens Projektleiter Tel.: +49 (0)211 41 79 34-24 Fax: +49 (0)211 41 79 34-33 Mobil: +49 (0)170 91 50 320 E-Mail:[email protected] Web: www.bs-exhibitions.de
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