Dx51d Dx52D Ral-Color Coated Roofing Coil, SGCC PPGI Zinc Prepainted Metal Coil, Galvalume Roofing Sheet Roll

Color Prepainted Galvanized PPGI Steel Coils are crafted from cold-rolled steel plates and galvanized steel plates through a surface pretreatment process (degreasing, cleaning, chemical conversion), followed by continuous coating (roll coating), baking, and cooling. The resulting coated steel sheet boasts a lightweight construction, aesthetically pleasing appearance, and excellent corrosion resistance, allowing for direct processing. This product serves as a novel raw material in construction, shipbuilding, vehicle manufacturing, household electrical appliances, and the electrical industry. It has proven effective in substituting wood with steel, facilitating efficient construction, energy conservation, pollution prevention, and other favorable outcomes.

Structure:
- Topcoat (finishing) provides color, enhances appearance, and establishes a protective film for prolonged durability.
- Primer coat prevents paint undercutting and improves corrosion resistance.
- Pretreatment layer ensures strong adhesion and enhances corrosion resistance.
- Base steel sheet.