🟧 Product Overview
PPGL (Prepainted Galvalume Steel Coil) is produced by applying organic paint onto a 55% aluminum‑zinc coated steel substrate . Compared with PPGI, PPGL offers:
Better corrosion resistance (2–6× galvanized steel)
Higher heat resistance
Longer service life in coastal and humid environments
Superior coating adhesion and color retention
PPGL is widely used in construction, roofing, wall cladding, home appliances, and industrial applications requiring long‑term durability.
🟧 Standards
ASTM A755 – Prepainted Metallic‑Coated Steel Sheet
ASTM A792 – Alu‑Zinc Coated Steel Sheet (55% Al‑Zn)
JIS G3322 – Prepainted Hot‑Dip 55% Al‑Zn Coated Steel Sheet
EN 10169 – Continuously Organic Coated Steel Flat Products
GB/T 2518 – Prepainted Steel Sheet
🟧 Available Products
Prepainted Galvalume Steel Coil (PPGL)
Color Coated Alu‑Zinc Coil
🟧 Product Specifications & Sizes
Dimensions
Thickness: 0.12 – 1.2 mm
Width: 600 – 1250 mm
Coil ID: 508 / 610 mm
Coil Weight: 3 – 8 MT
Type Thickness(mm) Width(mm) 1219 1500 1800 2000 Cold Rolled 0.3 √ √ √ √ 0.4 √ √ √ √ 0.5 √ √ √ √ 0.6 √ √ √ √ 0.7 √ √ √ √ 0.8 √ √ √ √ 0.9 √ √ √ √ 1.0 √ √ √ √ 1.2 √ √ √ √ 1.5 √ √ √ √ 1.8 √ √ √ √ 2.0 √ √ √ √ 2.5 √ √ √ √ 3.0 √ √ √ √ 4.0 √ √ √ √ 5.0 √ √ √ √ 6.0 √ √ √ √ Hot Rolled 4.0 √ √ √ √ 5.0 √ √ √ √ 6.0 √ √ √ √ 8.0 √ √ √ √ 10.0 √ √ √ √ 12.0 √ √ √ √ 14.0 √ √ √ √ 16.0 √ √ √ √
Alu‑Zinc Coating (AZ)
Coating Thickness
Top coating: 10–25 μm
Back coating: 5–12 μm
🟧 Coating Types
PE (Polyester) – economical, flexible, widely used
SMP (Silicone Modified Polyester) – improved hardness and weather resistance
HDP (High Durable Polyester) – excellent UV resistance and color retention
PVDF (Polyvinylidene Fluoride) – premium coating with maximum weather resistance
Nano‑PVDF – enhanced self‑cleaning and corrosion resistance
🟧 Color Options
Full RAL color chart
Glossy / Matte
Wood grain
Marble pattern
Camouflage
Custom printed patterns
🟧 Mechanical Properties (typical)
Property Value Yield Strength 240–350 MPa Tensile Strength 350–550 MPa Elongation ≥ 18% Hardness 50–90 HRB
🟧 Surface Types
Regular spangle
Zero spangle
Chromated / Non‑chromated
Oiled / Dry
🟧 Applications
Construction
Roofing sheets
Wall cladding
Ceiling panels
Garage doors
Sandwich panels
Home Appliances
Refrigerator panels
Washing machine panels
Air conditioner casings
Industrial
Equipment housings
Electrical cabinets
Ventilation systems
Transportation
Vehicle body panels
Interior and exterior decorative parts
🟧 Why Use PPGL Prepainted Galvalume Steel Coil
Superior corrosion resistance vs. PPGI
Excellent heat and weather resistance
Long‑lasting color durability
Lightweight and easy to process
Ideal for coastal and humid environments
🟧 Why Choose WelSteels
Full RAL color availability
Stable coating adhesion and color uniformity
Advanced continuous coating lines
SGS / BV inspection available
Export‑grade seaworthy packaging
Reliable delivery for global projects