PVC Waterproofing Membrane System

Flexible PVC‑P membranes for tunnels and basements

Opaque, weldable PVC‑P membranes with signal layer options, engineered for high watertightness and puncture resistance in below‑grade and tunnel waterproofing (not for permanent UV exposure).

Waterproof at 5 bar (24 h)

Cold crack resistance to −35°C

High puncture resistance

Welded seam integrity

Waterproofing That Survives Deformation and Ground Contact

Basements, retaining walls, reservoirs and tunnels demand watertight barriers that keep sealing even when substrates deform or have irregularities.
PVC‑P membranes are designed for high watertightness, strong weld seams, and puncture resistance—supporting long‑term below‑grade performance.

How PVC‑P Membranes Are Installed and Welded

Substrates are repaired (voids/hollow concrete) using polymer‑modified mortar and must be fully dry; any moisture is removed using a blowtorch.
Membranes are assembled using hot‑air or hot‑wedge welding; welding quality depends on clean, dry surfaces and site conditions like temperature and humidity.
An anti‑puncturing geotextile (or protective composite) is placed beneath the membrane to protect and support the waterproofing layer.