Plastic-Steel Sheet Piles for Groundwater Cutoff Wall & Saltwater Intrusion Control

Our interlocking plastic-steel sheet piles serve as a reliable cutoff wall solution to block groundwater flow and stop saltwater intrusion into freshwater aquifers.

Made of modified UV-stabilized polymer composite, these sheet piles feature excellent salt corrosion resistance. Unlike steel sheet piles, they will not rust when exposed to brackish and saline underground water. The tight interlock design delivers stable water-sealing performance for long-term underground cutoff projects.

Core Advantages

• Outstanding anti-salt corrosion performance, suitable for coastal saline soil zones
• Reliable lock joint sealing, effectively slowing saltwater permeation
• Lightweight for fast installation, less heavy machinery required
• Long service life: 20–40 years in coastal underground environments
• Low maintenance; no anti-rust coating or regular inspection needed
• Removable and reusable for temporary cutoff projects