Prepainted Steel Coil

Prepainted Steel Coil is an advanced material that pre-coates multiple layers of polymer coatings on galvanized, galvanized or zinc-aluminum-magnesium substrates through a continuous roller coating process. It has excellent weather resistance, decorativeness and environmental protection. We provide color-coated plates that meet international standards such as ASTM A755, JIS G3312, EN 10169, etc. The substrate can be GI/AZ150/ZAM275, and the coating covers PVDF (fluorocarbon), HDP (high weather-resistant polyester), PE (polyester), etc. The thickness is 0.3-1.5mm and the width is 600-1300mm. It supports customization of 30+ surface effects such as wood grain, stone grain, and metal brushing, enabling the dual upgrade of architectural aesthetics and industrial efficiency.

Five core competitive advantages

Extremely long weathering life

PVDF coating: 70% fluorocarbon resin content, UV resistance level △E≤5 (20 years), salt spray resistance ≥1500 hours, suitable for coastal and highly polluted environments.

HDP coating: anti-powdering performance is improved by 50%, color fidelity is more than 15 years, and it is the first choice for cost performance.

Environmentally friendly and energy-saving process

Using chrome-free passivation + water-based paint, VOC emissions are reduced by 90%, meeting the requirements of LEED green building certification.

Reflective coating (Solar Reflective) can reduce the surface temperature of the building by 8-12℃ and save air conditioning energy.

Intelligent customization service

Color library: Provide RAL and Pantone color card matching, support 3D rendering preview;

Additional functions: antibacterial coating (Ag+ ion), self-cleaning coating (photocatalyst), antistatic coating (Ω≤10^6).

Precision processing adaptability

Coating adhesion ≥ T grade (grid test), resistant to bending 180° without cracking, suitable for stamping, rolling, laser cutting and other processes.

Full industry chain quality control

Full process control of substrate coating detection (XRF thickness measurement) → coating curing degree (T bend test) → finished product weather resistance (QUV accelerated aging).

Application scenarios and solutions

Technical parameter comparison table