Cormix tail seal greases are specially formulated for Earth Pressure Balance (EPB) and Slurry TBM systems to ensure effective sealing between the shield tail and segmental lining. These greases prevent the ingress of water, soil, and backfill grout into the machine, reducing wear on tail brushes and maintaining optimal lubrication and sealing performance throughout tunnelling operations.
Designed with high-pressure resistance, strong adhesion, and excellent water-repellent properties, Cormix tail seal greases provide reliable barrier protection even in high groundwater or abrasive soil conditions. The range includes both standard operational greases and first-fill formulations to guarantee immediate sealing from the start of the drive.
These products help minimise downtime, reduce maintenance costs, and enhance the overall safety and efficiency of TBM excavations.
Key Features ;
• Excellent sealing against water, soil, and grout ingress
• High-pressure resistance and strong adhesion
• Protects tail brushes and reduces mechanical wear
• Water-repellent, non-washout formulation
• Suitable for EPB and Slurry TBM systems
• Ensures safe and continuous tunnelling operation
Typical Applications:
• Tail shield sealing in TBM excavation
• Initial sealing at the start of tunnelling (First-Fill)
• Continuous lubrication during segment installation
• Protection of EPB and Slurry TBM tail brushes
• Tunnelling in high-water-pressure and abrasive soils
