Color Coated Galvanized Steel Coil for Building

 Product Description

Prepainted Galvanized Steel Coils produced by Rogosteel are manufactured by subjecting hot-dipped galvanized steel sheets to surface chemical treatments, applying organic coatings, and then baking and curing the surface. These coils are ideal for a wide range of applications, including roofing, guttering, sandwich panels, industrial building facades, cold storage panels, and rolling doors.

 Structure of Prepainted Galvanized Steel Coil

1. Top Finish Coating: PE/HDP/PVDF, etc.

2. Primer Coating

3. Surface Treatment Layer: Chromate Coating

4. Metallic Coated Layer: Zinc

5. Steel Substrate: Cold Rolled Steel Sheet

6. Metallic Coated Layer: Zinc

7. Surface Treatment Layer: Chromate Coating

8. Back Primer

9. Back Finish Coating: Epoxy, Polyester

 Types of Paint

- Polyester (PE): Suitable for residential roofing, economical, not for harsh environments.

- Silicone Modified Polyester (SMP): High weathering resistance, suitable for high heat, cold, humid environments.

- Polyvinylidene Difluoride (PVDF): Strong corrosion and heat resistance, suitable for humid, hot, and rainy climates.

 Uses of Prepainted Galvanized Steel Coils

- Home Appliances: Refrigerator side door panels, air conditioner shells, freezer and washing machine shells.

- Construction: Roofing, guttering, sandwich panels, industrial building facades, cold storage panels, rolling doors.