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Waterproof membranes
Galleries and tunnels

Tunnel waterproofing with flexible PVC sheets
Tunnel waterproofing with flexible PVC sheets
Dust reduction and sound reduction in mines and tunnels
Tunnel waterproofing with flexible PVC sheets
Tunnel waterproofing with flexible PVC sheets
Dust reduction and sound reduction in mines and tunnels
droplet
Acts as a waterproof membrane to prevent leaks
durable
Provides high mechanical strength for long-term performance
multiple layers
 Available in widths up to 2.2 m and thicknesses up to 12 mm
uv resistance
UV-resistant for outdoor and exposed environments
transparent
Transparent options allow safe, precise welding and inspection

In underground construction, waterproofing is essential to protect galleries and tunnels from water infiltration and structural damage.

Flexible PVC membranes provide a reliable barrier against moisture while offering the mechanical strength needed to withstand demanding conditions.

Transparent membrane options make it easier to perform safe, accurate welding and visual inspections, while opaque membranes ensure complete coverage in light-sensitive areas.

With a wide range of thicknesses and widths, Extruflex membranes can be adapted to suit large-scale tunnel projects or more confined gallery spaces. These solutions help extend the lifespan of infrastructure, improve safety, and reduce costly maintenance.

Extruflex supplies vinyl membranes

Recommended vinyl

Opaque Coloured PVC

Opaque coloured pvc

Ideal for waterproofing in galleries, Opaque coloured PVC is available up to 2200mm width.

Clear PVC

Clear pvc

The clear PVC is recommmended for transparent waterproof membranes or geomembranes. PVC clear is available up to 2200mm width for large tunnels and galleries. The very high transparency is allowing to see behind the membrane until shrouding.

EXTRUFLEX

Extruflex UK
Unit J2, Carlton Drive Pen-Y-Fan
Industrial Estate, Crumlin, Gwent, NP11 4EA, UK

Tel: +44 (0) 1495 248 548
Fax: +44 (0) 1495 248 066

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