SMP Coated Galvalume Steel Coils for Durable Construction
November 10, 2025
A new generation of SMP-coated CGLCC prepainted Galvalume steel coils is setting higher benchmarks in construction material performance. By combining proven Galvalume substrate corrosion resistance with advanced Silicone Modified Polyester (SMP) coating technology, these steel coils deliver exceptional durability for demanding architectural applications.
The standout feature of these steel coils is their advanced SMP coating, which incorporates silicone resins to significantly improve UV resistance and reduce chalking compared to standard polyester coatings. This formulation ensures color and gloss retention for 15-20 years in moderate climates, substantially outperforming conventional painted options. The product offers approximately 80-85% of PVDF coating performance at a more accessible price point, making it an ideal balanced solution for most exterior applications.
Manufactured according to ASTM A653 standards, these coils feature a thickness range of 0.15mm to 1.5mm with zinc coating weights from 30-275g/m². The precise paint thickness – 10-25μm on the top surface and 5-8μm on the back – ensures optimal protection while maintaining excellent formability for various processing techniques including roll forming, bending, and welding.
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Long-span roofing systems for agricultural, industrial, and commercial buildings
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Exterior wall panels and facades requiring minimal maintenance
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Architectural canopies and sunshades with maximum solar exposure
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Industrial siding and cladding in harsh environmental conditions
Backed by SGS, BV, and ISO9001 certifications, the production process ensures consistent quality across a capacity of 50,000 tons annually. Comprehensive export packaging with multiple protective layers and ISPM15-compliant wooden crates guarantees optimal condition upon arrival at project sites worldwide.
With its combination of technical superiority, practical application benefits, and cost-effective performance, these SMP-coated Galvalume steel coils represent a significant advancement in construction material technology, offering architects and builders a reliable solution for projects demanding both aesthetic appeal and long-term durability.