Recommended PPGL Steel Coil Specification by Application
The right PPGL (prepainted galvalume steel coil) specification depends on the application, forming process, exposure environment and production equipment. Instead of selecting a coil only by price, buyers should confirm the substrate, Al-Zn coating, paint system, thickness, width and mechanical properties before ordering.
| Application | Recommended Specification |
|---|---|
| Roofing Sheets | 0.30โ0.60 mm; AZ100โAZ150; PE / SMP |
| Wall Cladding | 0.30โ0.60 mm; AZ100โAZ150; PE / SMP |
| Sandwich Panels | Based on panel design; DX51D / Custom; AZ coating as required; PE / SMP |
| EPS Panels | Based on panel thickness and forming line; DX51D commonly used |
| PU / PIR Panels | Based on panel structure and forming requirements; PE / SMP options |
| Rock Wool Panels | Based on panel structure, fire-performance requirements and forming line |
| Cold Room Panels | Corrosion-resistant coating system; specification based on panel design and service environment |
| Coastal Roofing | AZ100โAZ150; SMP / PVDF for higher weathering requirements |
| Hot Climate Roofing | AZ coating with suitable high-weather-resistance paint system |
| Agricultural Buildings | Coating system selected according to humidity, chemicals and exposure conditions |
Key Specifications to Confirm Before Ordering
| Item | Recommended Selection |
|---|---|
| Thickness | Based on panel/roof design and roll-forming requirements |
| Steel Grade | DX51D / DX52D / Custom |
| Al-Zn Coating | AZ30โAZ150 |
| Paint System | PE / SMP / PVDF |
| Color | RAL Color / Customer Sample |
| Width | Based on roll-forming or sandwich panel line |
| Hardness | Soft / Semi-Hard / Full Hard / G550 |
| Coil Weight | 3โ5 MT / Customized |
| Inner Diameter | 508 mm / 610 mm |
| Surface | Regular / Matt / Wrinkle / Embossed / Printed |
