Pre Painted Steel Coil with 30–275g/m² Zinc Coating and 5–7μm Back Coating for

Product Specification

Pre Painted Steel Coil with 30–275g/m² Zinc Coating and 5–7μm Back Coating for Industrial Equipment Panels

１．Product Overview

Pre Painted Steel Coil is a color coated steel material used for industrial equipment panels, machinery housings, electrical cabinets, appliance components, roofing sheets, wall panels, and general metal fabrication.

The product combines zinc coating, pre-painted surface treatment, and organic paint coating systems to provide corrosion resistance, stable surface appearance, and processing performance. With 30–275g/m² zinc coating and 5–7μm back coating, it is suitable for applications requiring reverse-side protection during forming, handling, and installation.

２．Technical Solution

The steel substrate is processed through surface treatment and continuous pre-painting. The zinc coating provides corrosion protection for the steel base, while the paint coating improves surface durability, color consistency, and weather resistance.

The 10–25μm top coating provides the exposed surface with color appearance and protection. The 5–7μm back coating supports reverse-side protection during transportation, storage, cutting, bending, and roll forming.

PE, SMP, HDP, and PVDF paint systems can be selected according to different operating conditions, including indoor equipment panels, outdoor machinery covers, roofing panels, and industrial building applications.

３．Specifications

４．Application

• Industrial equipment panels
• Machinery housings and covers
• Electrical cabinet panels
• Storage tank outer panels
• Roofing sheets and wall cladding
• Home appliance shells
• Automotive components
• Furniture panels
• Signage and decorative metal sheets
• General fabrication parts

５．Processing

• Slitting
• Cut-to-length processing
• Roll forming
• Bending
• Stamping
• Profiling
• Panel fabrication
• Protective film lamination
• Industrial enclosure forming

６．Advantages

• 30–275g/m² zinc coating supports corrosion protection for different industrial environments.
• 10–25μm top coating improves surface durability and color appearance.
• 5–7μm back coating improves reverse-side protection during fabrication and use.
• PE, SMP, HDP, and PVDF coatings support different weather resistance and durability requirements.
• RAL Color System supports consistent color matching for equipment and architectural projects.
• 700–1250mm width range supports panel production, appliance fabrication, and industrial processing.
• 508 / 610mm coil ID is compatible with common decoiling and forming equipment.

７．How to Choose

• For indoor equipment panels, PE coating is commonly selected.
• For outdoor machinery covers and building panels, SMP or HDP coating is more suitable.
• For high UV, coastal, or demanding outdoor environments, PVDF coating is recommended.
• For stronger corrosion protection, select a higher zinc coating level.
• For automated processing lines, confirm width, coil weight, and coil ID before ordering.

８．FAQ

Q1．What is the zinc coating range

The zinc coating range is 30–275g/m².

Q2．What paint coating systems are available

PE, SMP, HDP, and PVDF paint coating systems are available.

Q3．What is the back coating thickness

The back coating thickness is 5–7μm.

Q4．What coil IDs are available

508mm and 610mm coil IDs are available.

Q5．What applications are suitable for this product

It is suitable for industrial equipment panels, machinery housings, electrical cabinets, roofing sheets, wall cladding, appliances, automotive parts, and general metal fabrication.