Pre-painted galvalume (PPGL) trapezoidal sheets, are made of steel substrates coated with 55% aluminum-zinc alloy and covered with weather-resistant protective coatings, delivering outstanding anti-corrosion, UV resistance and durability. Featuring a rigid trapezoidal structure, they ensure efficient drainage and strong wind pressure resistance with a service life of 20 to 30 years. Widely applied in industrial factories, warehouses, logistics parks and commercial buildings, WanZhi supplies galvalume roof sheets in various specifications and colors with coating weights ranging from AZ30 to AZ150g/㎡, meeting global project requirements.
Thickness: 0.12-2.0mm
Width: 600-1,250mm
MQQ: 10 tons
Specification
| Product | Pre Painted Galvalume Trapezoidal Profile Sheets |
|---|---|
| Substrate | Hot-dip 55% Al-Zn Galvalume steel (GL) |
| Thickness | 0.12mm - 2.0mm |
| Width | 600mm - 1,250mm |
| Length | 1000 – 11000mm or as per your requirement |
| Coating Thickness | AZ30 – AZ150 g/㎡ |
| Top Paint / Back Paint | Top: PE, SMP, HDP, PVDF; Back: anti-rust primer |
| Paint Thickness | Top: 11–35μm; Back: 5–14μm |
| Material | DX51D+AZ, DX52D+AZ, DX53D+AZ, Q235+AZ, Q345+AZ, SGCC+AZ, etc. |
| Yield Strength | 220MPa – 350MPa |
| Color | RAL color, customized colors |
| Paint Surface | Matt, glossy, emboss, wrinkled |
| Standard | GB, EN, JIS |
| Package | Standard export package or as per customer requirements |
Pre-painted Galvalume Sheets For Sale
Besides trapezoidal profile sheets, Wanzhi Group supplies pre-painted galvalume sheets in a full range of specifications, colors, sizes and types, including corrugated, trapezoidal, ribbed, color coated, tile-like, vertical locking, sandwich panels. Customized solutions are available based on customer requirements. We also provide comprehensive processing services including slitting, cutting, stamping, bending and forming, etc. Wanzhi Group owns professional production lines for galvalume, galvalume magnesium and other alloy coated steel sheets. Welcome to contact us for more details.
PPGL Trapezoidal Sheets Price
Multiple factors determine the price of PPGL trapezoidal sheets, including steel substrate thickness, galvalume coating weight, paint type, profile specification, etc., so the price of Galvalume Steel is higher than Galvanized Steel and lower than ZAM Steel. The price of galvalume steel is in the range of 600-1000 USD per ton. As a professional manufacturer, WanZhi owns complete independent factory production lines, realizing integrated production from raw materials to finished products. We provide customers with stable, cost-effective factory direct prices. Contact us for the best price!
PPGL Roofing Sheets Manufacturing Process
Raw galvalume steel coils firstly go through degreasing, cleaning and surface passivation treatment, then are coated with primer and topcoat before high-temperature curing and cooling. After quality inspection, the painted steel sheets are cold-rolled into trapezoidal shapes, cut into required sizes, and finally carefully packaged for transportation and delivery.
PPGI Trapezoidal Sheets VS PPGL Trapezoidal Sheets
PPGI trapezoidal sheets adopt pure zinc substrate with low cost and stable performance for ordinary buildings.
PPGL trapezoidal sheets apply aluminum-zinc alloy coating, boasting stronger corrosion and weather resistance, ideal for coastal, industrial and high-demand construction projects.
| Item | PPGI Trapezoidal Sheets | PPGL Trapezoidal Sheets |
| Name | Pre-painted Galvanized Trapezoidal Sheets | Pre-painted Galvalume Trapezoidal Sheets |
| Base Coating | Pure hot-dip zinc coating | 55% aluminum-zinc silicon alloy coating |
| Corrosion Resistance | Regular anti-rust ability, suitable for mild environments | Excellent anti-corrosion, perfect for humid & coastal areas |
| Weather Resistance | Ordinary UV and aging resistance | High weatherability, anti-fading and anti-oxidation |
| Service Life | 10–15 years in normal outdoor conditions | 20–30 years under the same service environment |
| Surface Performance | Uniform coating with good decorative effect | Smooth surface, high hardness and stability |
| Cost | Lower initial cost, economical for common projects | Slightly higher price, ultra-low later maintenance cost |
PPGL Trapezoidal Profile Sheets Advantages
PPGL (Pre-painted Galvalume) trapezoidal profile sheets offer several advantages that make them a popular choice in construction and industrial applications.
- Superior Corrosion Resistance: Adopts 55% aluminum-zinc galvalume base, with much better rust and oxidation resistance than galvanized steel, suitable for humid, coastal and harsh environments.
- Weather & UV Resistance: High-quality protective coatings resist UV radiation, color fading, cracking and aging, ensuring long-term outdoor service.
- High Structural Strength: Scientific trapezoidal wave design improves overall rigidity, featuring excellent wind resistance, pressure resistance and rapid drainage.
- Lightweight & Easy Installation: Light weight reduces building load; simple cutting and installation save construction time and labor costs.
- Rich Customization: Various RAL colors, thicknesses and specifications are available to meet different architectural and aesthetic needs.
- Long Service Life & Low Maintenance: Durable coating and stable metal substrate support 20–30 years service life, with almost no daily maintenance.
- Eco-Friendly: Made from recyclable materials, PPGL sheets align with sustainable building practices and contribute to environmentally friendly construction.
PPGL Trapezoidal Sheets Applications
- Industrial building roofing and wall cladding
- Warehouses, logistics centers and storage sheds
- Factory workshops, manufacturing plants and industrial parks
- Commercial buildings, shopping malls and exhibition halls
- Agricultural buildings: barns, farms and breeding houses
- Temporary buildings, container houses and prefab constructions
- Canopies, carports, sunshades and corridor shelters
- Public facilities, gymnasiums and large-span buildings
- Ventilation walls, partition panels and peripheral enclosures
Galvalume Profile Sheets Factory And Supplier – WanZhi Group
Wanzhi is an ISO-certified Chinese supplier of galvalume steel and roofing sheets. It has supplied products complying with international standards including ASTM, EN and JIS to over 120 countries and regions worldwide. Our product range covers galvalume corrugated sheets, tiled sheets, galvalume steel coils, pre-painted galvalume steel sheets/coils, etc. We also provide one-stop services from design, customization to production for global customers.
Factory
- Production Line: Wanzhi Group owns three professional color-coated steel production lines. With strict production management procedures covering substrate cleaning, coating, cooling, curing, rolling and cutting, we provide diversified surface treatment solutions, such as film lamination, passivation, phosphating, anti-fingerprint treatment and painting, and so on.
- Certificate: All products are supplied with complete material certificates and test reports in compliance with international standards, ensuring stable and reliable quality.

Supplier
- Packages: We adopt standard export packaging, including anti-rust film, kraft paper, steel strips, wooden pallets, corner protectors and moisture-proof paper. Customized packaging is also available upon request, such as vertical packing and customized logo printing.
- Delivery: Each batch of goods is attached with complete material certificates. We can arrange on-site third-party factory inspection before shipment and coordinate global logistics to ensure intact and timely delivery to your project site.
- Customized Services: Wanzhi Group provides comprehensive customization services in terms of size, metal coating type, coating color, material and packaging. As a direct factory supplier, we maintain sufficient raw material inventory. Regular galvalume steel products are in stock, and the lead time for customized orders ranges from 5 to 45 days.
Customer Feedback
With professional services, strict quality control and on-time delivery, Wanzhi has received positive feedback from customers all over the world.
Global Cases
Endowed with rich global project experience, Wanzhi supplies high-quality steel materials for construction, industry and agriculture to more than 120 countries and regions with reliable services.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Wanzhi Steel provides galvalume roof sheets in thicknesses from 0.12mm to 2.0mm with various colors, specifications and types. If you need other products such as galvanized/galvalume steel sheet, coil, strips, and customized metal roofing sheets, etc., please feel free to visit or request samples!






