INTEGRITY

Prepainted PPGL Coils Ensure Durable Roofing Projects

In the field of building metal material, Colour Coated Coil is the modern mainstream for roof and exterior wall panel application for its good anticorrosion performance and decoration. The high grade product PPGL Steel Coil is the aluminum-zinc based alloy sheet as substrate, executes surface pretreatment (chemical degreasing and chemical conversion treatment), coated with one or more layers of organic coatings and bake cured. When compared with conventional galvanized products, PPGL steel coil not only enjoys the protection from the aluminum-zinc alloy layer, but also the organic coating adds an additional layer of covering and protection, with a service life of about 1.5 times that of galvanized steel coil.

Shanghai-based ZZ Group has been actively involved in the steel service market for many years. It has evolved into a complex enterprise group of steel trading, steel processing and distribution, steel raw material operation, real estate development as well as financial investment. The group operates 20+ subsidiaries and stock points, 6 plants and has more than 1,500 employees, with a annual steel product sales over 4.5 million tons and an annual sales revenue of more than 2.7 billion USD. In the steel commerce, ZZ Group represents the renowned domestic steel mills productions Baosteel, Ansteel, Shougang, Bensteel, Hebei Steel, Jiujiang Steel, and Liujiang Steel, with services to over 40,000 enterprise clients including Gree, Midea, Geely, Volkswagen and Xugong. This time the RAL 9001 commonly used Prepainted Steel Coil released by the group is just the top quality building material provided to the construction industry clients from its lifelong supply system and processing and distribution services.

Based on the product parameters, this Prepainted Galvanized Steel Coil is equivalent to common international standards such as AISI, ASTM, BS, DIN, GB and JIS. The grade of the base material can be offered as per the customer’s specification, such as Dx51d, G550, S350GD and so on. Thickness is from 0.12mm to 0.4mm, width is customized; aluminium zink coating weight is 40-275g/m2, coating thickness is 15/5μm or customized as per customer requirement; coating type covers PE, HDP, SMP, PVDF as well as other resin system which can be chosen flexibly according to different work environment. The structure of the product is topcoat (color and decorative effect, further improves the durability), primer (isolates the paint film, increase the corrosion resistance), pre-treatment layer (enhances adhesion and corrosion resistance) and substrate.

ZZ Group has always followed “honest, pragmatic, innovative and win-win cooperation” as its business tenet, and taken the customer demand as the application ever before. With a nationwide network in South China, North China, Central China and East China, and steel processing and distribution centers in Shanghai and Quanzhou, the group is able to offer customers a one-stop service ranging from material selection consultation, Custom processing, to warehousing and distribution. Going ahead, ZZ Group will continue to promote its transformation from traditional steel trading to steel supply chain services, and will strive to co-create a better future with all partners by providing high-quality products and professional services.


Post time: Aug-26-2026

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