Color Coated Steel Coils For Sandwich Panels
For sandwich panel manufacturers, high-quality color-coated steel coils not only affect the product’s appearance but also directly impact the durability, processability, and market competitiveness of sandwich panels. We provide color-coated steel coils suitable for sandwich panel production and also offer pre-formed color-coated corrugated sheets tailored to customers’ production requirements, helping sandwich panel manufacturers optimize their procurement processes.
Ensure product quality and transportation
Color-coated steel coils are a key raw material for the production of various products, particularly metal sandwich panels, as the metal sheets on their surfaces are formed from color-coated steel coils through a profiling process. If you are a manufacturer of metal sandwich panels, you can source color-coated steel coils or pre-profiled color-coated corrugated sheets from us for the production of sandwich panels.
Color-Coated Steel Coils for Manufacturing Metal Profiled Sheets
Structure of Color-Coated Steel Coils for Sandwich Panels
Base metal (hot-dip galvanized steel + aluminum-zinc-coated steel) + coating (zinc or aluminum-zinc) + passivation layer (to enhance paint adhesion) + primer layer + topcoat layer.
The coating process follows a 2/1 configuration (two coats and one bake on the front, one coat and one bake on the back). The front receives two layers (primer + topcoat), while the back receives one layer (backcoat). The back uses a high-adhesion backcoat system to enhance the bond between the color-coated steel coil and the core material, making it suitable for the production of sandwich panels using PU, EPS, rock wool, and other core materials.
Customization Options
- Thickness: 0.12–1.5 mm (common metal sheet thicknesses for sandwich panels range from 0.30 to 0.75 mm); we can produce any thickness within this range.
- Coating Types: PE/HDP/PVDF. Among these, PVDF offers the best weather resistance and corrosion resistance, as well as the longest service life (>20 years).
- Surface Color: Generally produced according to RAL colors, with common options including RAL 9003, RAL 9010, RAL 5015, and RAL 8019; or customized based on samples you provide.
- Surface Treatment: After profiling, the material serves as the raw material for sandwich panels. The surface can also be perforated for use in soundproofing panels.
- Packaging: We offer vertical or horizontal packaging. Packaging can also be customized according to customer requirements. Steel coil packaging includes plastic film, waterproof paper, galvanized steel sheets, steel strapping, corner protectors, and more.
Advantages of Our Color-Coated Steel Coils
- Highly Customizable: Offers a wide range of options for thickness, color, coating, and packaging, providing a high degree of customization;
- Wide Range of Applications: Meets the production needs of various types of sandwich panels, including PU sandwich panels, EPS sandwich panels, rock wool sandwich panels, cold storage panels, cleanroom panels, and soundproof panels;
- Minimal Color Variation: We have advanced and stable production lines, ensuring minimal color variation in our color-coated steel coils, whether from the same batch or different batches.
Conclusion
Color-coated steel coils are a critical material that determines the performance of metal sandwich panels during the manufacturing process. Selecting the appropriate substrate, galvanized coating, and paint coating system can effectively enhance the corrosion resistance, aesthetic quality, and service life of sandwich panels.
As a supplier of color-coated steel coils, we not only provide standard color-coated steel coils but also offer customized steel solutions tailored to the production needs of sandwich panel manufacturers, including steel coil supply, roll forming, and packaging support.
