Three Main Anti-Corrosion Processes In Global Steel Industry - Knowledge
Corrosion is the biggest hidden danger that shortens the service life of steel buildings and steel components. Different projects need matched anti-rust technology...
1. Shot blasting + multi-layer paint system Base standard for ordinary factory, warehouse and exhibition truss. Steel surface reaches Sa2.5 cleanliness grade after shot blasting, then coated with zinc-rich primer, epoxy intermediate paint and weather-resistant topcoat. Low comprehensive cost, easy on-site touch-up. Not suitable for long-term underwater or coastal high salt fog environment.
2. Hot-dip galvanizing All components fully immersed in high temperature zinc liquid, form a tight zinc alloy protective layer. Perfect for telecom tower, power lattice tower, PV brackets, outdoor pipe racks. Zero maintenance within 20 years outdoors, resist salt fog and rain erosion.
3. Heavy-duty composite anti-corrosion system Combine shot blasting, multi-layer epoxy coating and cathodic protection, specially customized for underwater steel sluice gate, offshore chemical pipe trestle, coastal port warehouse. Resist seawater, acid and alkali gas corrosion, service life over 40 years under harsh media environment.