PPGL Color Steel Sheet - Mill Direct Manufacturer |
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of PPGL Color Steel Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | PPGL Color Steel Sheet | Pre-painted Galvalume steel sheet with polymer coating |
| Material Grade | AZ150 / AZ100 / AZ50 | Equivalent to JIS G3322 CGLCC, EN 10169, ASTM A755M |
| Standard Compliance | ASTM A755M / EN 10169 / JIS G3322 / GB/T 14978 | International standards for pre-painted Galvalume steel |
| Chemical Composition (Coating) | Al: 55%, Zn: 43.4%, Si: 1.6% | Galvalume alloy coating composition by weight |
| Chemical Composition (Base Steel) | C ≤ 0.12%, Mn ≤ 0.60%, P ≤ 0.04%, S ≤ 0.04% | Low-carbon steel substrate chemical limits |
| Tensile Strength | ≥ 270 MPa (commercial grade); ≥ 340 MPa (structural grade) | Per ASTM A755M / GB/T 14978 |
| Yield Strength | ≥ 240 MPa (commercial); ≥ 280 MPa (structural) | Minimum yield point per standard specification |
| Elongation | ≥ 20% (A80mm) | Measured on 80mm gauge length per EN 10169 |
| Base Metal Thickness | 0.18 mm – 1.20 mm | Excluding coating and paint layer thickness |
| Width Range | 600 mm – 1,250 mm | Coil or sheet width; custom slitting available |
| Coating Mass | AZ50 (150 g/m²) / AZ100 (300 g/m²) / AZ150 (450 g/m²) | Total both-side Galvalume coating weight |
| Paint Coating | Top coat: 15–25 μm (PVDF/PE/SMP); Back coat: 5–10 μm | PVDF offers superior UV and weather resistance |
| Surface Finish | Smooth / Embossed / Matte / High Gloss | RAL color customization available; 60° gloss 30–80 GU |
| Application | Roofing, wall cladding, sandwich panels, home appliances, warehouses | Widely used in construction and industrial sectors |
| Certification | ISO 9001, SGS, BV, CE | Quality management and third-party inspection available |
| Packaging | Coil: eye-to-sky or eye-to-wall; Sheet: wooden pallet with steel strapping | Moisture-proof paper and waterproof wrapping included |
| MOQ | 25 MT per order | Mixed specifications accepted; OEM orders welcome |
PPGL Color Steel Sheet - Mill Direct Manufacturer |
PPGL color steel sheet is a high-performance prepainted galvalume steel product that serves critical roles in modern construction, industrial roofing, and architectural cladding applications worldwide. Engineered with a zinc-aluminum alloy coating base and a durable polymer paint layer, PPGL color steel sheet delivers a remarkable combination of corrosion resistance, aesthetic flexibility, and structural integrity. Unlike conventional galvanized alternatives, the galvalume substrate — composed of approximately 55% aluminum, 43.4% zinc, and 1.6% silicon — provides superior heat reflectivity and long-term durability even in harsh coastal or industrial environments. As a mill-direct manufacturer, we supply PPGL color steel sheet in a broad spectrum of RAL colors and custom finishes, ensuring that architects, contractors, and steel distributors receive consistent premium-grade material at cost-effective mill-direct rates. Our production capacity supports both large-volume project orders and flexible small-batch requirements, making us a trusted partner for global procurement teams seeking reliable supply chains and traceable quality documentation.

What is PPGL Color Steel Sheet?
PPGL color steel sheet — short for Prepainted Galvalume Steel Sheet — is a cold-rolled steel base coated with a Zn-Al-Si alloy layer through continuous hot-dip galvalume processing, followed by chemical treatment and the application of one or more layers of organic paint coatings. The result is a lightweight, corrosion-resistant panel that combines the mechanical strength of steel with the weather durability of aluminum-zinc alloy and the decorative versatility of polymer coatings. It finds extensive application in roofing panels, wall cladding, sandwich panels, home appliances, and pre-engineered building systems.
PPGL Color Steel Sheet Manufacturing Process
The production of PPGL color steel sheet begins with cold-rolled steel coils that are degreased, rinsed, and chemically passivated before entering the continuous hot-dip galvalume coating line, where a 55% Al-Zn alloy bath deposits a uniform protective layer. The galvalume substrate then undergoes chromate or chrome-free passivation treatment to enhance paint adhesion. A primer coat is applied first, followed by a top coat — typically polyester (PE), high-durability polyester (HDP), polyvinylidene fluoride (PVDF), or silicon-modified polyester (SMP) — using precision roll-coating equipment, then cured in a high-temperature oven at approximately 230°C to ensure optimal film hardness and flexibility.
PPGL Color Steel Sheet Technical Specifications
Our PPGL color steel sheet is manufactured in compliance with ASTM A755, EN 10169, and JIS G3322 international standards. Key parameters include a base steel thickness ranging from 0.18 mm to 1.20 mm, a galvalume coating weight of AZ50 to AZ150 (50–150 g/m²), and a coil width of 600 mm to 1,250 mm. Paint film thickness is typically 15–25 µm for the top coat and 5–7 µm for the primer. Tensile strength reaches a minimum of 550 MPa for high-strength grades, with yield strength of 450 MPa. Salt spray resistance exceeds 1,000 hours per ASTM B117 testing protocols, and the paint system achieves a pencil hardness rating of 2H minimum, ensuring long-term surface integrity under UV exposure and thermal cycling conditions.
Get a Competitive Quote for PPGL Color Steel Sheet
Partner with our mill-direct team to access superior quality PPGL color steel sheet at transparent, competitive pricing. Whether you require standard RAL colors or custom-formulated finishes, our technical sales team is ready to provide certified material data sheets, sample panels, and tailored quotations aligned with your project specifications and delivery timeline.
- 24/7 customer support available
- Free samples for quality evaluation
- Competitive pricing for bulk orders
- Professional technical consultation
Contact us today to get your free quote within 24 hours!

