3105 H24 Alloy White Color Coated Aluminium Coil for Down Gutter Producing

3105 H24 Alloy White Color Coated Aluminium Coil for Down Gutter Producing

3105 alloy color coated aluminium coil for down gutter is a durable, lightweight, and corrosion-resistant aluminium material designed for rain gutters, downspouts, roof drainage systems, and architectural water collection applications. Made from 3105 aluminium-manganese alloy and finished with high-performance color coating, this product provides excellent forming performance, long-term outdoor durability, and attractive appearance for residential, commercial, industrial, and municipal drainage projects.

Compared with traditional steel gutter materials, 3105 color coated aluminium coil offers lower weight, better corrosion resistance, easier processing, and reduced structural load. It can be roll-formed, cut, bent, and fabricated into various gutter and downspout profiles while maintaining stable coating adhesion and consistent surface color.

Product Introduction

3105 alloy belongs to the aluminium-manganese alloy series. It has stable mechanical properties, good ductility, excellent corrosion resistance, and strong suitability for outdoor building applications. Its density is about one-third that of steel, making the finished down gutter system easier to transport, install, and maintain.

The surface coating can be customized with PE, SMP, PVDF, or composite coating systems. PE coating is cost-effective and suitable for general building drainage systems. SMP coating provides better UV resistance for strong sunlight environments. PVDF coating offers excellent weather resistance, color retention, and long-term outdoor performance, making it suitable for high-end buildings and demanding exterior applications.

3105 Aluminium Alloy Characteristics

3105 aluminium alloy provides a balanced combination of corrosion resistance, strength, formability, and coating compatibility. It is especially suitable for gutter and downspout production because the coil can withstand bending and roll-forming processes without easy cracking, peeling, or deformation.

Taking 3105 H26 as an example, the tensile strength is generally around 160-200 MPa, the yield strength is around 130-170 MPa, and the elongation is approximately 2%-6%. This temper provides sufficient strength while maintaining suitable formability for down gutter manufacturing.

Product Picture

Product Specifications

Key Advantages of 3105 Color Coated Aluminium Coil for Down Gutter

Product Display

Applications

1. Residential Buildings: Used for downspouts and rain gutters in villas, apartments, townhouses, and private homes, combining efficient drainage with architectural appearance.

2. Commercial and Public Buildings: Suitable for drainage systems in shopping malls, office buildings, hotels, schools, hospitals, and public facilities.

3. Industrial Facilities: Used for factories, warehouses, workshops, and industrial buildings where outdoor durability and corrosion resistance are required.

4. Municipal Engineering: Suitable for public infrastructure, municipal buildings, roads, bridges, and large-scale drainage projects.

5. Villa and High-End Communities: Custom-colored down gutters can match exterior decoration and improve the overall visual quality of the building.

Production Process

1. Raw Material Inspection: Select qualified aluminium raw materials and test chemical composition and mechanical properties to ensure compliance with production standards.

2. Melting and Casting: Melt aluminium materials in a professional furnace and cast them into aluminium slabs or billets through controlled casting technology.

3. Hot Rolling and Cold Rolling: Roll aluminium slabs into coils and reduce them to the required thickness with accurate thickness control.

4. Annealing Treatment: Heat the cold-rolled coils in an annealing furnace to improve ductility and reduce internal stress.

5. Surface Pretreatment: Degrease, rinse, and passivate the aluminium surface to improve coating adhesion and corrosion resistance.

6. Color Coating: Apply primer and topcoat through a roller coating machine, with coating thickness controlled evenly.

7. Curing Process: Bake the coated coils in a curing oven to ensure full coating curing and strong adhesion.

8. Slitting and Cutting: Slit large coils into custom widths or cut them into required lengths according to customer requirements.

9. Quality Inspection: Test coating adhesion, coating thickness, color consistency, mechanical properties, and corrosion resistance.

10. Packaging and Shipping: Pack coils with moisture-proof film, kraft paper, protective materials, and export-standard pallets for safe transportation.

FAQs

Why is 3105 alloy suitable for down gutter applications?

3105 alloy is an aluminium-manganese alloy with excellent corrosion resistance, good ductility, and reliable forming performance. It can be processed into rain gutters, downspouts, and drainage profiles while maintaining low weight and stable outdoor durability.

How long does the color coating last outdoors?

The outdoor service life depends on the coating type and use environment. PE coating is suitable for general outdoor applications, while PVDF coating provides stronger weather resistance, UV resistance, and color retention for long-term exterior use.

Can the thickness, width, and color be customized?

Yes. Thickness, width, coil length, coating type, surface finish, and color can be customized according to customer requirements. Colors can be matched according to RAL, PANTONE, or customer-provided samples.

What certifications are available?

The product can comply with ASTM B209, EN 573-3, GB/T 3880, ISO 9001, SGS, and other inspection or quality requirements according to project needs.

What is the lead time for bulk orders?

For standard specifications, the lead time is usually 7-10 working days. For customized specifications, the lead time is usually 12-15 working days. Final delivery time depends on order quantity, production schedule, and destination port.

Export Standard Packaging

Export standard seaworthy packing is available with wooden pallets in horizontal or vertical packaging according to customer requirements. Protective packing helps prevent moisture, scratches, collision damage, and deformation during long-distance transportation.

Contact Us for 3105 Color Coated Aluminium Coil

If you need 3105 alloy color coated aluminium coil for down gutter, rain gutter, downspout, or roof drainage system production, please contact us for specifications, coating options, color matching, samples, and quotation details.

           

Dingang Painted Aluminium Coil Manufacturer

Dingang painted aluminium coil is a reliable choice for color coated aluminium coil and sheet production. Dingang is a professional manufacturer of aluminium alloy color coated aluminium coil and sheet materials since 2002.

Welcome to contact us if you have any demand for color coated aluminium coil, prepainted aluminium sheet, aluminium gutter coil, or customized aluminium coating materials.

Changzhou Dingang Metal Material Co., Ltd.

Robert Tang, Sales Director

Email: robert@cnchangsong.com

Phone: +0086 159 6120 6328 (WhatsApp / WeChat)