Polyaspartic Polyurea coating applied to Wastewater plant wall

Project Location: ChinaCompletion Year: 2024Core Material: Polyaspartic polyurea seamless waterproof anti-corrosion coatingCore Pain Points: Severe wall water seepage & chemical corrosion on sewage plant concrete structures under high-humidity, strong acid & alkaline working conditions. Sewage contains abundant chloride ions and organic contaminants that continuously erode concrete substrates, triggering wall leakage, structural aging, frequent shutdown maintenance and high long-term operating costs.

We delivered a tailor-made polyaspartic polyurea protection system targeted at harsh sewage plant corrosive environments:

1：Comprehensive base surface treatment for acid-base resistant concrete walls to remove loose layers, repair cracks and boost coating adhesion;

2：Layered spraying of high-performance polyaspartic polyurea raw materials;

3：Form a uniform, dense seamless protective film with a thickness of 2.2mm without gaps or pinholes.

Lab and on-site testing confirm outstanding comprehensive performance of polyaspartic polyurea lining:

1：Superior impermeability: Fully block penetration of sewage, chloride ions and organic matter to eliminate wall leakage permanently;

2：Excellent chemical resistance: Long-term anti-erosion against mixed acid, alkali and sewage pollutants;

3：High impact resistance: Resist mechanical collision and abrasion during daily plant operation;

4：Eco-friendly & non-toxic formula: Zero harmful volatile substances, meets industrial environmental protection standards.

After full construction and acceptance in 2024, the polyaspartic polyurea system delivers dual safety & cost-saving gains for the sewage treatment plant:

1：Ultra-long service life: The integrated wall waterproof anti-corrosion system provides a service lifespan of more than 15 years;

2：Maintenance-free performance: Seamless film avoids regular repair work, greatly cutting long-term labor and material maintenance costs;

3：Stable safe production: Effectively prevent concrete wall corrosion and leakage risks, supporting continuous sewage treatment operation;

4：Optimized full-cycle operation cost: Reduce periodic renovation investment and production loss caused by maintenance shutdowns.

This mature polyaspartic polyurea anti-corrosion waterproof solution can be replicated for municipal sewage plants, industrial wastewater pools, chemical concrete structures and all facilities exposed to high-humidity acid-alkali corrosive wastewater environments.