



PPGL steel coil starts with galvalume substrate as its base. Through a multi-stage surface preparation process—including chemical degreasing and conversion coating—the material is primed for painting. Then comes the application of organic coatings, applied in layers and thermally cured to form a durable finish. This topcoat doesn’t just add color; it works alongside the underlying alu-zinc layer to deliver double-layered protection against corrosion. The result? A service life that extends roughly 50% beyond what standard galvalume coils can offer.
Continuous improvement isn't just a slogan here—it's how we run our daily operations. From production lines to after-sales support, we're constantly fine-tuning every detail. Our R&D efforts are especially focused on advancing our PPGL Steel Coil series, ensuring we stay ahead of market demands. We operate on a simple principle: deliver solid quality at fair prices. If that sounds like the kind of partner you're looking for, get in touch. We'd be glad to explore possibilities together.
1.Standard: AISI, ASTM, BS, DIN, GB, JIS
2.Material: ASTM A792, all according to the customer's request
3.Color: RAL color or according to customer's sample
4.Thickness: 0.12mm-0.4mm, all available
5.Width: customized
6. Length: according to per customer's requirement
7.Coil ID: 508/610mm
8. Coil weight: according to per customer's requirement
9.Alu-zinc coating:40-275 g/m2
10.Film: 15/5 um, or as per customer's requirement
11.Type of coating: PE, HDP, SMP, PVDF
12.Structure of Prepainted Galvalume Steel Coil:
*Topcoat (finishing) which provides color, pleasing appearance and appearance and a barrier film to enhance long-term durability.
*Primer coat to prevent undercutting of paint and enhance corrosion resistance.
*Pretreatment layer applied for good adhesion and to enhance corrosion resistance.
*Base steel sheet.
PPGL steel coil offers a compelling combination of low deadweight, aesthetic appeal, and superior corrosion resistance, making it an efficient choice for direct forming and fabrication processes. As a premium-grade Prepainted Steel Coil, its performance stems from a dual-layer protection system—the zinc-aluminum alloy substrate provides the primary barrier against environmental degradation, while the baked-on organic topcoat delivers supplementary coverage that effectively isolates the steel surface from moisture and contaminants. This synergistic protective architecture significantly extends the material's functional lifespan, delivering approximately 50% greater durability compared to conventional galvanized steel coil products in equivalent service conditions.
PPGL steel coil delivers reliable performance across a broad spectrum of industries, thanks to its lightweight construction, corrosion resistance, and versatile coating options. Below are the primary application fields where this material excels:
1. Building & Construction
From exterior wall panels and roofing systems to interior partition walls and ceiling tiles, PPGL steel coil is widely adopted in the construction sector. Its aesthetic finish and long-term weather resistance make it an ideal choice for both residential and commercial building projects, as well as prefabricated modular structures.
2. Advertising & Signage
The smooth, color-consistent surface of PPGL steel coil is well-suited for outdoor billboards, signage boards, and display frameworks. Its anti-corrosion properties ensure that advertising structures maintain their visual impact even under prolonged exposure to sun, rain, and wind.
3. Household Appliances
PPGL steel coil is commonly used in the manufacturing of home appliances such as refrigerators, washing machines, air conditioners, and microwave ovens. The protective organic coating not only enhances appearance but also resists scratches, stains, and daily wear.
4. Electrical Equipment
In the electrical industry, this material serves as enclosures, control cabinets, and switchgear panels. The insulating properties of the coating, combined with the steel's structural strength, provide dependable protection for sensitive electrical components.
5. Furniture Manufacturing
Modern office and residential furniture—including filing cabinets, shelving units, tables, and storage systems—benefit from the lightweight yet sturdy nature of PPGL steel coil. The pre-painted surface eliminates the need for post-fabrication painting, streamlining production.
6. Transportation
The transportation sector utilizes PPGL steel coil for vehicle body panels, interior trim, cargo containers, and trailer components. Its excellent formability allows for complex shaping while maintaining surface integrity.
As China metal materials industry leading enterprises, the national steel trade and logistics "Hundred good faith enterprise",China steel trade enterprises, "Top 100 private enterprises in Shanghai”. Shanghai Zhanzhi industry Group Co., Ltd.,(shorted to Zhanzhi Group) takes the" Integrity, Practicality, Innovation, Win-Win " as its sole operation principle, always persist in putting the customer demand in the first place.


