Betonamit non-explosive cracking agent is a non-toxic powder. When mixed with water and poured into holes 1 1/4", 1 3/8" or 1 1/2" diameter, it hardens and expands, exerting pressures of 12,000 psi. Reinforced concrete, boulders, and ledges are fractured overnight with no noise, vibration, or flyrock. 5 kgs. Hersteller/Kubatec.