Urban municipal drinking water steel pipelines require inner lining that contacts clean water directly, ordinary epoxy will precipitate harmful substances after long-term soaking, failing water safety testing. Global municipal water network renovation projects boom in 2026, requiring certified food-grade lining materials.

FLDC NSF/ANSI 61 certified full epoxy lining system for fresh water steel transmission pipes:

1. High-solid epoxy penetration sealer: Lock steel pipe inner surface rust residue
2. Solvent-free thick epoxy intermediate lining: Form dense waterproof barrier
3. Non-toxic food-grade epoxy top lining: Zero extractable heavy metal ions Core Advantages: ✅ Pass international NSF drinking water safety certification, fully compliant municipal tender requirements ✅ Resist long-term fresh water immersion without blister or delamination ✅ Smooth inner surface reduce water flow resistance & pipeline scaling ✅ Low odor solvent-free formula suitable confined pipe construction ✅ Large tank bulk packaging for municipal engineering bidding Our water pipe lining coating has been used in dozens of city water supply renovation projects across Asia, Europe. Request technical datasheet and construction specification.