700–1250mm Pre Painted Steel Coil with 5–7μm Back Coating, 10–25μm Top Coating and 508/610mm Coil ID for Building Materials and Electrical Appliances

１．Product Overview

Pre painted steel coil is a color coated steel material designed for building materials, electrical appliances, roofing, wall cladding, automotive parts, furniture, and decorative metal products.

The product combines zinc coating, paint coating, and pre-painted surface treatment to provide corrosion protection, color consistency, and processing convenience. With 700–1250 mm width, 508 mm / 610 mm coil ID, and RAL color options, it is suitable for both continuous production lines and customized fabrication projects.

２．Technical Solution

The steel coil is coated with zinc protection and then finished with PE, SMP, HDP, or PVDF paint coating according to application requirements.

The top coating thickness of 10–25 μm provides the main decorative and protective surface. The 5–7 μm back coating supports underside protection and improves overall coating balance during fabrication and service.

RAL color system options allow consistent color matching for roofing sheets, appliance panels, wall cladding, and decorative components.

３．Specifications

４．Application

• Building roofing sheets
• Wall cladding panels
• Architectural decoration
• Electrical appliance panels
• Refrigerator and washing machine panels
• Air conditioner components
• Automotive parts
• Furniture panels
• Electrical cabinets
• Packaging and decorative metal products

５．Processing

• Slitting into required widths
• Cut-to-length sheet production
• Roll forming into roofing sheets
• Bending and profiling
• Stamping and punching
• Panel fabrication
• Appliance shell processing
• Secondary coating or protective film application

６．Advantages

• Zinc coating from 30–275 g/m² supports corrosion protection for different application environments.
• PE, SMP, HDP, and PVDF coating options provide flexibility for indoor, outdoor, decorative, and weather-resistant applications.
• 10–25 μm top coating supports surface protection and color appearance.
• 5–7 μm back coating improves underside protection and coating balance.
• 700–1250 mm width range supports roofing, appliance, and general sheet processing.
• 508 mm and 610 mm coil IDs are compatible with common uncoiling and forming equipment.

７．How to Choose

• For general building panels, choose PE coating.
• For better weather resistance, choose SMP, HDP, or PVDF coating.
• For roofing and wall cladding, confirm zinc coating, top coating thickness, and RAL color.
• For appliance panels, confirm surface smoothness, color consistency, and back coating requirement.
• For continuous processing lines, confirm coil ID, width, and coil handling requirements before production.

８．FAQ

Q1: What coating types are available?

PE, SMP, HDP, and PVDF paint coatings are available.

Q2: What is the top coating thickness?

The top coating thickness is 10–25 μm.

Q3: What is the back coating thickness?

The back coating thickness is 5–7 μm.

Q4: What coil IDs are available?

508 mm and 610 mm coil IDs are available.

Q5: Can colors be customized?

Yes. Colors can be selected according to the RAL color system.

Q6: What applications are suitable for this product?

It is suitable for building materials, roofing sheets, wall cladding, electrical appliances, automotive parts, furniture, and decorative metal products.