PPAL
DINGANG
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Anti-scratch color coated aluminium strip for roller shutter doors, shutter slats, garage doors, window shutters and architectural sunshade systems.
3003 H24 color coated aluminium strip is designed for shutter door production. It offers good corrosion resistance, stable forming performance and excellent decorative flexibility. The surface can be coated in various colors, patterns, wood grain textures, sand grain textures and embossed finishes to meet different architectural design requirements.
Dingang 3003 H24 color coated aluminium strip is suitable for producing roller shutter door slats, shutter panels, window shutter blades and related exterior door components. The 3003 aluminium substrate provides reliable corrosion resistance and workability, while the H24 temper offers balanced strength for roll forming, slitting and bending.
With PUPA anti-scratch coating technology, the aluminium strip surface can maintain an attractive appearance during processing, transportation, installation and daily use. It is a practical material choice for shutter door manufacturers requiring consistent color, durable coating and efficient continuous production.
3003 H24 color coated aluminium strip is mainly used to manufacture roller shutter doors, shutter slats, garage door panels, window shutters and exterior shading components. It combines lightweight aluminium, anti-scratch coating, corrosion resistance and custom surface finishes for long-term outdoor use.
PUPA painted aluminium creates a vibrant, attractive and durable surface finish. It is resistant to weathering, corrosion, abrasion and general wear, making it suitable for shutter doors, building facades, roofing, signage, transportation panels and decorative architectural products.
The coating can be produced in a wide range of colors, textures and finishes to match different design styles. It adheres firmly to the aluminium surface and provides a smooth, even coating that helps resist peeling, cracking and fading over time.
Aesthetic appeal: PUPA painted aluminium provides an attractive surface finish that improves the appearance of shutter doors and architectural products.
Durability: The coating is designed for long-term use and helps protect the surface from scratches, wear and daily handling damage.
Corrosion resistance: Aluminium naturally resists corrosion, and the additional coating layer further improves protection for outdoor shutter applications.
Design flexibility: The material can be supplied in solid colors, metallic colors, wood grain finishes, sand grain textures and custom decorative patterns.
Roller shutter doors: Used for producing durable and decorative aluminium shutter slats and door panels.
Building facades: Suitable for cladding and exterior decorative panels requiring color consistency and weather resistance.
Roofing: The corrosion resistance and coating durability make it suitable for selected roofing and covering applications.
Signage: The flat, colorful and durable surface makes it suitable for indoor and outdoor signage materials.
Interior decoration: It can be used for walls, ceilings, partitions and other decorative surfaces.
Transportation: PUPA painted aluminium can be used for decorative vehicle panels, buses, trains and other transport-related components.
Alloy options: 3105 / 3005 / 3003
Temper options: H18, H24, H26
Popular thickness: 0.18 mm, 0.19 mm, 0.20 mm, 0.21 mm, 0.37 mm, 0.40 mm and other customized thicknesses
Coating capacity: 0.024 mm – 1.5 mm
Popular aluminium slat width: 118 mm, 119 mm, 120 mm, 121 mm, 122 mm and other customized widths
Coating and slitting capacity: 15 mm – 1600 mm
Popular colors: White, silver, anthracite grey, brown, wooden texture and customized colors
Dingang can follow RAL K5, RAL K7, Pantone references or clients’ customized colors for shutter door, roller shutter and architectural decoration applications.
Edge burrs of painted aluminium strips must not cause problems during shutter door production. Burrs should be controlled as small as possible to support smooth roll forming, slitting, assembly and continuous processing.
| Coating Properties | Standards | Result |
| Pre-treatment | — | Chromium-free |
| Thickness | EN 1396 | Structured finish |
| Front side coating | EN 1396 | Primer + paint: 24 ±3 µm, or 22 ±3 µm |
| Reverse side coating | EN 1396 | 4 ±1 µm, or 7 ±2 µm |
| Gloss | EN 1396 | Structured finish: 28 ±5, or as per client requirements |
| Colours | EN 13523-3 | CIELAB, illuminator standard D65, observer 10° |
| Colour tolerance | EN 13523-3 | DE* max 1.0 |
| Metallic, wood imitation and organic colours | Reference standard | Visual colorimetric assessment according to the approved reference standard |
| Tests | Standards | Result, Top Coat |
| Blocking test | ASTM D3003 | 8–10 depending on the colours |
| Workability, cracking after bending | EN 13523-7 | T 0.5 without severe cracks |
| MEK test, front side | EN 13523-11 | Over 100 double rubs |
| MEK test, reverse side | EN 13523-11 | Over 60 double rubs |
| Abrasion resistance | EN 13523-16 | Taber abrasion test, 2 × 500 g, 1,000 cycles |
| Abrasion result | EN 13523-16 | CS 10 rolls, up to 50 mg depending on product |
| Appearance properties | Visual inspection | The surface of painted aluminium strips should be free from visible defects |
| Minimum Order Quantity, MOQ | 1–5 MT each specification |
| Essential Inquiry Information | Alloy and temper, size including thickness and width, coating type, color reference and final application |
| Supply Format | Aluminium material can be supplied as coils, strips or slats according to customer requirements |
| Painted Aluminium Coil Packing | Standard export packing for coated aluminium coils and strips |
| Inner Core Material | Paper core |
| Inner Core Diameter | 405 / 505 mm |
| Outer Packing Material | Paperboard protection |
| Ocean Transportation Packing | Wooden pallet with wooden runners between each pan for safe sea shipment |
It is a pre-painted aluminium strip made from 3003 alloy in H24 temper. It is commonly used for roller shutter doors, shutter slats, garage doors and window shutter systems because it offers good corrosion resistance, formability and decorative surface performance.
3003 H24 aluminium provides a good balance of strength, corrosion resistance and processing stability. It can be slit, roll formed and bent into shutter slats while maintaining reliable coating adhesion and surface quality.
Yes. Dingang can produce coated aluminium strips according to RAL K5, RAL K7, Pantone references, wood grain patterns, sand grain textures and customized color samples provided by customers.
Popular thicknesses include 0.18 mm, 0.19 mm, 0.20 mm, 0.21 mm, 0.37 mm and 0.40 mm. Popular slat widths include 118 mm, 119 mm, 120 mm, 121 mm and 122 mm. Custom sizes can also be supplied.
Please provide alloy, temper, thickness, width, coating type, color reference, required surface finish, coil weight requirement and the final use, such as roller shutter door slats or garage door panels.
PUPA anti-scratch coating helps reduce visible surface damage during slitting, roll forming, handling, transportation and installation. It supports better finished-product appearance and improves product competitiveness in shutter door applications.
If you need aluminium coil, aluminium sheet or color coated aluminium strip for shutter door production, please contact Dingang for specification discussion, quotation and sample support.
Dingang is a professional manufacturer of aluminium alloy color coated aluminium coil and sheet materials. Since 2002, Dingang has supplied coated aluminium products for shutter doors, roller shutters, roofing, ceilings, household appliances, insulation panels and architectural decoration.
Welcome to send your inquiry if you have demand for coating aluminium coil, aluminium sheet or aluminium strip materials.
Changzhou Dingang Metal Material Co., Ltd.
Robert Tang, Sales Director
Email: robert@cnchangsong.com
Phone / WhatsApp / WeChat: +0086 159 6120 6328
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