Underground Construction and Mining Company in Canada ? Bolat
> Tight Knot

Tight Knot

tight knot

Tight Knot is a two component resin made of organic minerals. Although it is not expandable, it is characterised by its excellent chemical stability, mechanical resistance and flexibility. Tight knot is used for water proofing fractured rock, consolidation of loose land and rock, crack and cavity filling.

Application Area

  • Tunnelling
  • Mining
  • Dams
  • Reservoirs
  • Aqueducts


  • The presence of water does not affect the reaction process
  • Not flammable
  • Hardens rapidly
  • Has thixotropic properties that appear as soon as the two components are mixed.
  • Non-toxic and non-pollutant


(at +20°C and 60% R.H.)

Density of component A 1.40 ± 0.05 (kg/dm3)
Density of component B 1.200 ± 0.05 (kg/dm3)
Viscosity of component A 600 ± 1000 mPas
Viscosity of component B 250 ± 50 mPas
Mixing ratio (A+B) 100 + 100 parts by volume / 100+87 parts by weight
Start of Reaction 1-2 minutes
Complete Reaction After 5 -10 minutes