The Marithan ® Polyurethane (PUR)

The Marithan ® polyurethane (PUR) strata injection resin systems N and S are flexible two component products which are particularly well suited for strata consolidation fractured ground.

The Marithan ® resin system N is used for stabilisation and to confine fractured strata material whilst the Marithan ® resin system S is used for stabilisation of waterbearing strata and to stop water migration.


  • Low viscosity, good penetration into fine cracks and fissures
  • Excellent adhesive power, forms strong bond with the strata
  • Good flexibility, tolerates subsequent ground movement
  • Water- reactive for water sealing operations
  • High mechanical resistance with improved strata support


  • Stabilisation of fractured and unstable ground
  • Sealing against water ingress
  • Strata sealing air / gas leakage

For more details on PUR application method see our strata consolidation services page.


Density at 25oC (g/cm3) 1.03 1.23
Viscosity at 25oC (mPa.s) 200 220
Shelf life at 20oC (months) 12 12
POLYMERISED PRODUCT N (Fractured Strata) S (Waterbearing Strata)
Ambient Temperature (oC) 15 25 15 25
Initial Viscosity (mPa.s) 310 155 305 155
Start of Reaction (min) 2:05 0:55 1:30 0:45
End of foaming (min) 2:40 1:15 1:50 0:50
Expansion ratio 1 2 1 2
The above data are values obtained in laboratory tests. They may vary according to site application conditions.

Metarock (ASX: MYE) is a leading Australian mining services group providing a diverse range of services and products to underground operations across the country.

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