Painted Aluminium Strip for Roller Shutters

The global roller shutter manufacturing industry is undergoing an upgrade from traditional color steel substrates to lightweight, corrosion-resistant aluminum materials. Ordinary color steel roller shutters suffer from drawbacks such as rust, paint peeling, high weight, and short maintenance cycles, which are particularly pronounced in coastal high-humidity and industrially polluted areas. HC Aluminum painted aluminium strip for roller shutters is a continuous roll-coated aluminum strip product customized for the door manufacturing industry. It uses a rust-resistant aluminum substrate combined with a high-performance paint finish to systematically address the shortcomings of traditional roller shutter materials, providing global door industry customers with a substrate solution that combines durability, aesthetics, and economy.

Painted aluminium strip for roller shutter uses 3003 rust-resistant aluminum alloy as its core substrate, balancing structural strength and forming toughness, making it the most adaptable aluminum substrate model in the door industry. Standard supply thicknesses range from 0.2mm to 1.5mm, and precise slitting widths can be customized according to customer slat patterns. Roll weight can be customized according to the feeding requirements of automated production lines in door factories, eliminating the need for secondary cutting. The surface is coated using a fully automated continuous roller coating process, featuring a standard outdoor weather-resistant polyester coating. For high-end applications, a PVDF fluorocarbon coating can be upgraded. The film thickness is uniformly controlled at 20–25 μm, and the film adhesion meets a Class 0 standard. The color system covers the full range of RAL and Pantone color codes, and supports customized wood grain, matte, and other special textures to meet the aesthetic design needs of different architectural styles.

Considering the high-frequency opening and closing and long-term outdoor exposure characteristics of roller shutter doors, the core performance of painted aluminium strip for roller shutter has been verified through multi-condition real-world testing. In terms of corrosion and weather resistance, it can withstand 1000 hours of neutral salt spray testing without rust. Under normal outdoor use, it maintains its color without chalking or peeling for 8-10 years, making it suitable for complex climatic environments such as coastal salt spray, industrial acids and alkalis, and extreme cold and sun exposure. Regarding processing, the substrate has excellent elongation, and combined with a high-adhesion paint, the paint film shows no cracking or peeling after cold bending, rolling, and punching. It perfectly matches the high-speed roll forming process for roller shutter slats, with a production yield consistently above 99%. In terms of lightweight design, its weight is only 60% of that of color steel plates of the same thickness, effectively reducing the load on the door motor and extending the service life of the transmission system by more than 30%, while significantly reducing long-distance transportation and on-site installation costs.

Currently, painted aluminium strip for roller shutter is widely compatible with various types of roller shutter doors, including commercial shop roller shutters, residential garage doors, industrial plant high-speed roller shutters, and windproof roller shutters. It can be used as an external surface or as the substrate for internal structure slats. For different overseas markets, we can tailor coating formulas and substrate hardness accordingly. In tropical regions, we enhance UV resistance, while in colder regions, we optimize low-temperature impact toughness, precisely matching local climates and usage habits.

As a professional manufacturer specializing in aluminum processing and export, we support custom slitting to specific lengths and precise roll weights. Our products are shipped in moisture-proof and rust-proof sealed packaging with reinforced wooden pallets, suitable for ocean shipping. We maintain a regular inventory of standard specifications, with delivery within 7-12 days. We support various trade terms such as FOB and CIF, and settle in US dollars. From material selection and free sampling to bulk supply, we provide dedicated technical support throughout the entire process, helping global door industry clients upgrade their products and enhance their market competitiveness.