Hot Dipped JIS G3312 ASTM A792 CGCC DX51D AZ PVDF Pre-Painted Steel Sheet

Hot Dipped JIS G3312 ASTM A792 CGCC DX51D AZ PVDF Pre-Painted Steel Sheet

1．Product Overview

Hot dipped pre-painted steel sheets are manufactured using galvanized steel or galvalume steel substrate combined with organic paint coating systems for roofing, wall cladding, home appliance panels, and industrial building applications.

The product is produced according to JIS G3312 and ASTM A792 standards with stable coating adhesion, forming performance, and outdoor corrosion resistance. The coated surface improves weather durability and provides consistent decorative appearance for exterior construction systems.

Commercial quality and Lock Forming Quality (LFQ) are available for roll forming and profiling applications.

2．Technical Solution

The substrate uses hot dipped galvanized steel or galvalume steel with Z60–Z275 zinc coating or AZ30–AZ150 aluminum-zinc coating for corrosion protection.

The surface coating system combines primer and top coating layers to improve coating adhesion, weather resistance, and forming flexibility.

PE coating is suitable for standard roofing and cladding applications, SMP coating provides improved weather stability, and PVDF coating supports stronger UV resistance and long-term color retention.

The coated steel sheet supports bending, roll forming, slitting, and cut-to-length processing while maintaining coating stability during fabrication.

3．Specifications

4．Application

The product is widely used for roofing sheets, wall cladding panels, steel structure buildings, prefabricated houses, warehouses, airports, and industrial construction projects.

It is also suitable for home appliance panels, container panels, decorative wall systems, and light industrial fabrication applications.

5．Processing

• The sheets support roll forming, bending, profiling, slitting, embossing, and cut-to-length processing.
• LFQ material improves forming stability during corrugated roofing sheet production and architectural panel fabrication.
• Protective film can be supplied to reduce surface scratches during transportation and installation.

6．Advantages

• The hot dipped galvanized or galvalume substrate improves corrosion resistance in outdoor environments.
• Z60–Z275 zinc coating and AZ30–AZ150 coating support stable durability under humid and industrial exposure conditions.
• The organic coating system improves coating adhesion, decorative appearance, and weather resistance.
• Multiple coating systems including PE, SMP, and PVDF are available for different service environments.
• The 700–1250mm width range supports standard roofing and cladding production lines.
• Customized RAL colors are available for architectural and industrial projects.

7．How to Choose

• Choose galvanized substrate for general construction and roofing applications.
• Choose galvalume substrate for stronger heat resistance and improved outdoor corrosion resistance.
• Choose PE coating for standard building applications.
• Choose SMP or PVDF coating for projects requiring stronger weatherability and UV resistance.
• Select coating thickness and coating type according to project environment and expected service life requirements.

8．FAQ

Q1．What substrate options are available
Hot dipped galvanized steel and galvalume steel substrates are available.

Q2．What coating systems can be supplied
PE, SMP, and PVDF coating systems are available.

Q3．Can customized RAL colors be produced
Yes. Customized RAL colors can be supplied according to project requirements.

Q4．Is protective film available
Yes. Protective film on the top surface is optional.

Q5．What applications is this product suitable for
The product is suitable for roofing sheets, wall cladding, home appliances, steel structure buildings, and industrial panel applications.