Qingdao Jero Steel Co., Ltd.
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Pre-painted G40 Galvanized Steel Coil Zibo Ppgi Steel Coil Prepainted Steel
Prepainted galvanized steel coil is a kind of color coated steel coil (PPGI coil). It uses
galvanized steel as the base metal. The zinc layer offers strong corrosion resistance. P
-lus with painting, it is more durable than galvanized steel.
Key properties
♦ Corrosion Resistance
Base metal (GI/GL) provides rust protection, while the organic coating adds an extra barrier.
Service life: 10–30 years (depending on environment and coating type).
♦ Aesthetic Flexibility
Available in various colors (RAL, Pantone), gloss levels (high-gloss/matte), and textures (wood
grain, stone effect).
♦ Formability
Can be cut, bent, and stamped, but coating flexibility varies (PVDF resists cracking better than
polyester).
♦ Weather Resistance
High-quality coatings (e.g., PVDF) resist UV fading, chalking, and chemical exposure.
♦ Eco-Friendliness
Some coatings use chromium-free or water-based formulas.
Key Advantages
✅ Cost-Effective – Factory-applied coating reduces on-site painting costs.
✅ Lightweight – Lighter than concrete/stone, ideal for large-span structures.
✅ Quick Installation – Pre-fabricated panels speed up construction.
✅ Low Maintenance – Smooth surface enables self-cleaning with rainwater.
✅ Multifunctional – Can be combined with insulation (sandwich panels) for thermal/acoustic benefits.
Common Thickness & Applications
| Base Thickness (mm) | Total Thickness (Coated) | Typical Applications |
| 0.3–0.5 | 0.32–0.55 | Home appliances (refrigerators, AC units), interior decor |
| 0.5–0.8 | 0.55–0.85 | Lightweight roofing/walls (warehouses, factories) |
| 0.8–1.2 | 0.85–1.25 | Building facades, partitions |
| 1.2–2.0 | 1.25–2.1 | Industrial equipment, shipping containers |
Enterprice Blueprint
“Establishing the first rate steel material enterprise!”is our JERO people's goal.We always follow
the principle of customer first!We focus on our energy to meet customer demand and benefits!
With good quality,reputation and excellent service,we are looking forwards to cooperate with all
the global customers to establish long time cooperation mutually beneficial relations and build
our beautiful career!