A single layer synthetic membrane of plasticized PVC designed for underground works in foundations and tunnels.
A synthetic membrane of plasticized PVC, manufactured by co-extrusion, producing a single layer membrane with different colour surfaces. The upper signal layer is coloured white and the lower surface black, which enables damaged areas to be immediately identified.
Flagon BSL displays high mechanical resistance and is resistant to roots, washout water action, low temperatures and eddy currents, typical applications include lining of natural and artificial tunnels and as a humidity screen for foundations.
The liner can also be supplied with inherent fire resistance to Class ‘B’ in accordance with DIN 4102/1. Consult manufacturer for details.
Joints are fixed/ sealed by welding. Laps are dependent on location and welding method. Consult manufacturer for specific recommendations.
J40/297 Waterproofing/ Damp proofing membrane
As drawing ___
Standard product features
Hydrostatic pressure resistance (DIN 16726-5.11):
Waterproof (72 hours at 4 bar).
Resistance to tearing (DIN 53363):
Puncture resistance (DIN 16726-5.12):
Elongation to break (DIN EN ISO 527-1):
Tensile Strength (DIN EN ISO 527-1):