TekStem was developed in response to the need from the seismic surveying industry for a superior stemming material.

Minova proprietary HYG technology is incorporated in the formulation. By combining with a large quantity of water this permits just one 50 lb bag of TekStem to fill 40 ft of 3-1/2” diameter borehole or 24 ft of 4-1/2” diameter borehole.

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  • Environmentally safe
  • Plastic-like consistency
  • Very high success rate
  • Very high success rate in “difficult” ground compared to other stemming techniques
  • Free-flowing grout guarantees excellent borehole wall contact
  • Environmentally safe
  • Can be used in water-filled holes
  • “Plastic-like” consistency when cured ensures it is easily cut if necessary
  • Non-brittle, Non-shrinking
  • Long working time, 30-40 minutes @ 100°F
  • Improved quality of signal strength and consistency
  • Greatly reduces reclamation costs resulting from "blow-outs"
  • One 50 lb bag is often sufficient per hole