0.18mm 1.20mm LFQ AZ Galvanized Steel Coils Gi Sheet Coil

0.18mm 1.20mm LFQ AZ Galvanized Steel Coils Gi Sheet Coil

1. Product Overview

AZ prepainted color steel coil is used where an aluminum-zinc coated steel substrate and a finished painted surface are both required in one material. This product is suitable for roofing sheets, wall cladding, façade panels, and general building sheet fabrication where corrosion resistance, appearance, and forming compatibility need to be considered together.

The page is positioned around lock forming quality and commercial quality supply. That makes it suitable for sheet routes where profile forming, bend behavior, and surface stability matter during roofing and cladding production.

2. Technical Solution

This product uses an AZ coated steel base combined with an organic paint system. In practical use, service performance depends on the combined effect of AZ coating weight, paint film build, forming route, cut edge condition, drainage design, and the actual outdoor environment.

The top side uses 15–20 micron polyester with 5 micron primer. The back side uses 5–7 micron or 7–8 micron polyester with 5 micron primer. This coating structure is suitable for standard roll forming and panel fabrication where the visible face needs controlled color and the back side still needs basic protection.

The listed paint systems include polyester, SMP, and PVDF. Polyester is generally used for standard projects. SMP is more suitable where better weather resistance is needed. PVDF is more suitable where stronger UV resistance and longer finish retention are required.

3. Specifications

4. Application

• This material is suitable for roofing sheets, wall cladding, façade panels, and steel structure building envelopes.
• It can also be used for corrugated sheet production, workshop roofs, warehouse panels, and other building sheet parts where a finished painted surface is preferred over post-paint processing.
• For outdoor roofing use, the final result is influenced by panel profile design, overlap detailing, fastening practice, and cut edge exposure as well as by the coating itself.

5. Processing

• The coil can be supplied for cut-to-length processing, slitting, roll forming, profiling, and corrugated sheet production.
• It is suitable for commercial quality or lock forming quality routes depending on profile depth and bend requirement.
• When the painted face is part of the visible installation surface, protective film can be selected to reduce scratching during transport, storage, and fabrication.

6. Advantages

• The 0.18–1.20mm thickness range supports light gauge to medium roofing and cladding fabrication.
• The 700–1250mm width range matches common roofing and cladding production lines.
• The AZ coating range of 50–180g/m2 provides a corrosion resistant metallic base for painted exterior sheet applications.
• The defined top and back coating structure supports more stable processing and more consistent service performance.
• Multiple paint systems allow the product to be selected according to project environment rather than using one coating route for all cases.

7. How to Choose

• Choose lower thickness when easier forming and lighter panel weight are important.
• Choose higher thickness when the panel needs more rigidity or stronger handling stability.
• Choose polyester for standard projects, SMP for stronger weather exposure, and PVDF when long-term exterior appearance and UV resistance are more important.
• Choose lock forming quality when the sheet will be used for deeper profiles or tighter bend routes.
• Choose the AZ coating level according to the service environment and corrosion protection target.

8. FAQ

Q1. What is the thickness range of this AZ prepainted color steel coil
The listed thickness range is 0.18–1.20mm.

Q2. What is the width range
The listed width range is 700–1250mm.

Q3. What AZ coating range is available
The listed AZ coating range is 50–180g/m2.

Q4. What paint systems are available
The listed paint systems are polyester, SMP, and PVDF.

Q5. Is this product suitable for roofing sheet production
Yes. It is suitable for roofing sheets, wall cladding panels, and related exterior building sheet applications when the coating level, paint system, forming route, and installation details are matched to the service condition.