Double Side PVDF/PE Coated Downspout Aluminum Coil (0.7mm×350mm) - High-Quality for Building Drainage

Product Overview

Our double-sided PVDF/PE coated downspout aluminum coil is a professional-grade material specifically developed for the fabrication of rainwater downspout and gutter systems. With strictly controlled specifications—0.7mm uniform thickness and 350mm fixed width—and advanced double-sided coating technology, this aluminum coil combines durability, processability and aesthetic performance, making it an ideal choice for residential, commercial and industrial building projects across the globe. It effectively solves the pain points of traditional drainage materials such as poor corrosion resistance, short service life and difficult processing, providing a reliable and long-lasting solution for building exterior drainage.

Key Specifications

Parameter Table

Basic Product Specifications

Thickness: 0.7mm (stable thickness with uniform error control within ±0.02mm, ensuring consistent processing performance)

Width: 350mm (fixed standard width, tailored for batch processing of downspouts and gutters, reducing material waste)

Length: Customizable (according to customer needs, supporting 50m, 100m, 200m per coil, easy to transport and store)

Material & Coating Specifications

Coating: Double-sided PVDF/PE coating (environmental-friendly, non-toxic, compliant with international environmental standards, no harmful substances)

Coating Thickness: 20-30μm per side (uniform coating, strong adhesion, not easy to peel or crack)

Material: High-quality 3003/5052 aluminum alloy (lightweight, high strength, good ductility, suitable for various forming processes)

Application Specifications

Application: Specialized for rainwater downspout, gutter system fabrication, and other building drainage accessories

Applicable Climate: Suitable for all climate zones, including tropical, subtropical, temperate and cold regions

Service Life: Over 15 years of outdoor service under normal use conditions

Advantages

1. Superior Coating Performance

Excellent Weather Resistance

The double-sided PVDF/PE coating is specially formulated to withstand extreme weather conditions. It can resist high temperatures up to 120℃, low temperatures down to -40℃, and effectively resist UV radiation, heavy rain, humidity and acid-base corrosion in the air, ensuring no fading, no discoloration and no degradation even after long-term outdoor exposure.

Strong Adhesion & Durability

Adopting advanced roller coating technology, the coating is closely bonded to the aluminum substrate, with strong adhesion. It will not peel, crack or fall off during processing, transportation or use, ensuring the integrity and durability of the product.

2. Precise Processing & Easy Forming

Uniform Thickness & Width

The 0.7mm thickness is strictly controlled with high precision, ensuring uniform thickness across the entire coil. The 350mm fixed width is designed to match the standard size of downspouts and gutters, facilitating batch processing, improving processing efficiency and reducing material waste.

Excellent Formability

The high-quality aluminum alloy substrate and smooth coating surface give the coil good bendability, ductility and cuttability. It can be easily bent, rolled, cut and punched into various shapes of downspouts, gutters and drainage accessories without damaging the coating or affecting the product performance.

3. Durable & Cost-Effective

Lightweight & Easy Installation

Compared with other metal materials, the aluminum coil is lightweight, which greatly reduces transportation costs and installation labor intensity. It can be easily installed on building exteriors without additional load-bearing support, saving installation time and costs.

Low Maintenance Cost

The anti-oxidation, anti-rust and anti-corrosion properties of the double-sided PVDF/PE coating avoid frequent maintenance and replacement. Unlike traditional steel materials that require regular painting and anti-rust treatment, our aluminum coil only needs simple cleaning to maintain its performance, saving long-term use costs for customers.

4. Wide Application Scope

Suitable for Various Building Types

The product is widely used in residential communities, commercial buildings, office buildings, factories, villas, schools, hospitals and other types of buildings, perfectly matching the rainwater drainage needs of different building exteriors.

Adaptable to All Climate Conditions

Whether in hot and humid tropical regions, dry and windy temperate regions, or cold and snowy northern regions, the product can maintain stable performance, effectively guiding rainwater discharge and protecting building walls and foundations from water damage.

Quality Assurance

Strict Quality Inspection Process

Raw Material Inspection

We select high-quality 3003/5052 aluminum alloy as the substrate, and conduct strict inspection on the raw materials, including composition analysis, strength testing and surface quality inspection, to ensure the raw materials meet international standards.

Production Process Inspection

During the production process, we conduct real-time inspection on the thickness, width, coating thickness and surface quality of the coil, ensuring that each link meets the quality requirements. We use professional testing equipment to detect coating adhesion, weather resistance and corrosion resistance.

Finished Product Inspection

After production, each coil undergoes a comprehensive inspection, including appearance inspection, thickness testing, coating adhesion testing and packaging inspection, to ensure no defects, uniform coating and stable performance. Unqualified products are strictly excluded from delivery.

International Quality Certification

Our products have passed various international quality certifications, including ISO9001 quality management system certification, SGS environmental certification and CE certification, meeting the quality requirements of global markets and ensuring that customers can use them with confidence.

Application

Residential Building Applications

Widely used in the rainwater drainage system of residential communities, villas and townhouses. It can be processed into various styles of downspouts and gutters, matching the architectural style of residential buildings, while effectively guiding rainwater discharge, protecting the walls and foundations of residential buildings from water erosion.

Commercial & Industrial Building Applications

Applied in the drainage system of commercial buildings, office buildings, shopping malls, factories and warehouses. The durable and corrosion-resistant performance ensures long-term stable use in industrial and commercial environments, reducing maintenance costs and ensuring the normal operation of the building.

Other Special Applications

Also suitable for the drainage system of public facilities such as schools, hospitals, parks and stadiums, as well as outdoor temporary buildings and prefabricated houses, providing a reliable drainage solution for various scenarios.