Prepainted Galvanized Steel Coil

In the field of building roofs, the weather resistance and decorativeness of materials directly affect the quality of the project. As China's leading metal sheet service provider, Yintu Steel Structure has focused on research and development for 18 years and launched a new generation of pre-coated galvanized steel coils (Prepainted Galvanized Steel Coil). Through the perfect combination of advanced coating technology and galvanized substrate, it provides industrial plants, commercial buildings, public facilities, etc. with both anti-corrosion and beautiful roofing solutions.

1. Why choose Yintu Steel Structure Pre-coated Galvanized Steel Coil?

In view of the complex climate environment and long-term use needs, our products have four core advantages:

Double protection system

Galvanized base: 85-150g/m² hot-dip galvanized layer, salt spray test over 1500 hours

Pre-coating: 20-25μm polyester (PE) or fluorocarbon (PVDF) topcoat, UV absorption rate > 98%

Precise mechanical properties

Yield strength: 245-350MPa (corresponding to DX51D/DX52D/DX53D)

Elongation ≥ 22%, suitable for complex roof shape processing

Intelligent coating process

Japan Kansai paint electrostatic coating technology, film thickness uniformity error < 2%

Dual coating structure: epoxy resin primer + topcoat, adhesion reaches level 0 (ASTM D3359)

Environmental protection and energy saving characteristics

Chromium-free passivation process, in line with RoHS and EU REACH standards

Pre-coating process reduces on-site spraying pollution and improves construction efficiency by 40%

II. Yintu Three major technological breakthroughs in pre-coated galvanized steel coils for steel structures

Nano-ceramic reinforcement technology

Adding Al₂O₃ nanoparticles to the coating increases the hardness to 3H and the scratch resistance by 50%

Self-cleaning surface treatment

Fluorocarbon topcoat contains TiO₂ photocatalytic components, which automatically decompose pollutants when washed by rainwater

Temperature compensation system

Real-time monitoring by German infrared temperature measurement technology ensures the coating consistency of products with different coil diameters

III. Wide application scenarios

Industrial buildings: factory roofs, warehouse enclosures, anti-corrosion roofs of chemical plants

Public facilities: gymnasiums, airport terminals, high-speed rail station canopies

Commercial real estate: shopping mall skylights, hotel exterior wall decoration

Agricultural fields: greenhouses, livestock farm ventilation roofs

IV. Our service advantages

Full specification customization

Thickness: 0.3-1.2mm, width: 600-1250mm

Supports special color customization (RAL color cards optional)

Full process quality control

Each roll of product comes with: galvanizing layer test report + coating thickness report + salt spray test report

Passed ISO 9001, ISO 14001 and SGS triple certification