Urban sewage treatment plants contain hydrogen sulfide gas, corrosive sludge and alternating wet-dry tank environments, causing severe rust on steel brackets, tank walls and equipment supports. Ordinary epoxy coating fails rapidly under sewage medium soaking.

FLDC full anti-corrosion system designed exclusively for sewage plant steel structures, split above-ground & submerged two sets of formulas to match different zones.

1. Above-Ground Steel Structure System (Ducts, Racks): Epoxy Zinc Phosphate Primer + Epoxy Mica Intermediate + Aliphatic Polyurethane Topcoat
2. Submerged Tank Inner Wall System (Sludge Tank): Epoxy Coal Tar Primer + Epoxy Glass Flake Intermediate + Thick-Film Epoxy Lining Core Advantages: ✅ Two segmented formulas adapt above & underwater sewage areas ✅ Strong resistance to hydrogen sulfide sewage gas corrosion ✅ Resist long-term sludge immersion & alternating wet-dry cycles ✅ High film thickness, reduce construction passes on site ✅ Meet municipal wastewater project acceptance standards

Our sewage plant anti-corrosion coatings have been used in hundreds of municipal renovation projects. Contact technical team for construction guidance.