Contite HPWM is a highly flexible spray applied cementitious waterproof menbrance for tunnel & other underground structures such as  subway stations, reservoirs,basement and etc. It replaces traditional sheet membranes with very high installation rates of up to 180 m²/hour by machine with no joints or seams.

What is CONTITE HPWM?

• A permanent flexible composite waterproof shell lining for tunnels.

CONTITE HPWM ADVANTAGES

• Fully Bonded.
• Spray applied with conventional.
• Rotor machine – easy application
• No problems with difficult shape such as rock bolts.
• Reduce thickness of overall lining
• Easy & fast installation by spray up to 150 -180 m ²
• No joints, seams, continuos waterproofing
• Use in complex situations, drained & undrained.
• Interfaces easily with other systems.

PREFORMED MEMBRANES DISADVANTAGES

• Very difficult to install
• Precise welding & fixing required
• Repair difficult
• Complex shapes difficult to waterproof
• Slow installation rates 20-25m²/hr.

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