ASTM A792 Pre Painted Steel Sheet RAL 2012 Z180 Prepainted Galvanized Steel Coil

1. Product Overview

Pre painted steel sheet is used where a metallic coated steel substrate and a finished color surface are required in one material. This product range is suitable for roofing sheets, wall cladding, façade panels, and general fabricated sheet parts where appearance, corrosion resistance, and forming compatibility need to be considered together.

This page is centered on a featured configuration of 0.5mm thickness and 3000mm cut length, with a width range of 700–1250mm. The product is positioned for exterior building sheet applications where the metallic coating level, paint build, and downstream forming route all affect final service behavior.

2. Technical Solution

The product uses a coated steel base with an organic paint system on the exposed surface. In practical use, service performance depends on the combined effect of metallic coating weight, primer support, top coat thickness, forming route, cut edge condition, and installation environment.

The listed top side coating is 15–20 micron polyester with 5 micron primer. The back side coating is 5–7 micron or 7–8 micron polyester with 5 micron primer. This coating build is suitable for roll forming and panel fabrication where outdoor exposure, transport handling, and visible surface quality all need to be considered together.

The page also lists polyester, SMP, and PVDF paint categories. 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, chemical stability, and longer finish retention are required.

3. Specifications

4. Application

• This material is suitable for roofing sheets, wall cladding, façade panels, and general exterior building panels.
• It can also be used for workshop roofs, warehouse panels, airport and storeroom cladding, vehicle related exterior sheets, furniture sheet parts, and electrical equipment housings where a finished painted surface is preferred over post-paint processing.
• For exterior applications, final durability depends not only on the coating structure but also on panel profile design, overlap detailing, drainage condition, and the actual exposure environment.

5. Processing

• The sheet can be supplied in cut length form or processed from coil for downstream fabrication.
• It is suitable for roll forming, bending, shearing, cutting, slitting, and general sheet metal fabrication.
• When the finished surface is visible after installation, protective film can be used to reduce scratching during transport, storage, and installation.
• For deeper profiles or tighter bends, the paint system and substrate condition should be checked together so that forming stability and visible surface quality remain compatible.

6. Advantages

• The 0.5mm featured thickness is suitable for many roofing and cladding routes that need a balance between panel rigidity and forming efficiency.
• The 700–1250mm width range matches mainstream panel and cladding production lines.
• The 40–275g/m2 metallic coating range allows the product to be matched to different corrosion environments instead of using one fixed coating level for all projects.
• The defined top and back coating structure provides a more controllable paint build for fabrication and service selection.
• Multiple paint systems allow the sheet to be selected according to weather exposure and finish retention requirements rather than by color alone.

7. How to Choose

• Choose a lower metallic coating level for lighter service conditions and a higher level within the listed 40–275g/m2 range when the environment is more demanding.
• Choose polyester for standard roofing and cladding projects. Choose SMP when better weather exposure resistance is needed. Choose PVDF when long term exterior appearance and UV resistance are more important.
• Choose thinner gauges when easier forming and lower panel weight are important. Choose thicker gauges when the panel needs more rigidity.
• Choose protective film when the painted surface will be exposed to repeated handling before installation.

8. FAQ

Q1. What is the featured thickness of this pre painted steel sheet
The featured thickness on this page is 0.5mm.

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

Q3. What is the metallic coating range
The listed metallic coating range is 40–275g/m2, and the featured configuration is positioned as Z180.

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

Q5. Can this product be used for roofing and wall cladding
Yes. It is suitable for roofing sheets and wall cladding panels when the coating level, paint system, profile design, and installation details are matched to the service condition.