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Specifically formulated for construction in coastal and marine environments where elevated chloride deposition demands maximum corrosion protection. HDP technology advances beyond SMP by incorporating higher molecular weight polyester resins with specialized cross-linking agents and advanced UV stabilizers, achieving 3-4 times the gloss retention of standard PE. The three-layer architecture with zinc phosphate conversion coating, chromate-free primer, and HDP topcoat has been validated through 1500+ hours of neutral salt spray testing per ISO 9227.
Key Features| Parameter | Specification |
|---|---|
| Substrate Grade | DX51D+Z / DX52D+Z |
| Thickness Range | 0.30mm - 1.20mm |
| Width Range | 600mm - 1250mm |
| Zinc Coating | Z150 - Z275 g/m² |
| Top Coating | HDP 20-25 μm |
| Primer | 7-10 μm |
| Salt Spray (ISO 9227) | 1500+ Hours |
| Service Life | 15-20 Years Coastal |
| Coil Weight | 3-8 tons |
Seaport warehouses and terminals, waterfront commercial developments, coastal resorts and hotels, fish processing plants, offshore platform service buildings, desalination plants, marina facilities. Also suitable for high-humidity tropical regions and chemical plant auxiliary buildings.
Packaging & Quality AssuranceVCI film with aluminum foil moisture barrier, desiccant bags inside coil eye, hardened steel edge protectors, fumigated ISPM 15 pallets with plastic overwrap. Documentation includes ISO 9227 1500h, ISO 11997-1 cyclic corrosion, ISO 6270-1 humidity 1000h, ISO 3231 sulfur dioxide resistance. ISO 9001 and ISO 14001 certified.
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