PUR-O-STOP FS-L

Slowly curing, from rigid to tough elastic, 2K polyurethane resin, which foams up in contact with water

  • Hybrid system for sealing and solidification
  • Fast curing
  • For restoring of tunnels, shafts, channels or brick work
  • Groundwater friendly approved
  • Stopping of inrushing water
  • Filling and solidification of ground structures (< 1 m3)

Mixture of A-and B-component
Processing temperature5 – 30°C (substrate temperature)
Viscosity of mixture (23°C)~ 140 mPas (DIN EN ISO 2555)
Mixing ratio A : B 1 : 1 (parts by volume)
Reaction data at 23°C:
String gel time~ 90 min (ASTM D7487)
with Catalyst≥ 0:58 min (ASTM D7487)
Volumetric expansion factorASTM C1643)
without wate1
with water1,5 – 3
End of foaming~ 24 h
Properties after curing
Bending tensile strength~ 29 N/mm2 (DIN EN 12390-5)
Compressive strength~ 74 N/mm2 (DIN EN 12390-3)
E-modulus~ 2800 MPa (DIN EN ISO 527)