KnockOut – Cement Dissolver

BioSol KNOCKOUT is an unique blend of acids and natural concrete solvents, KNOCKOUT goes to work immediately to remove concrete, cement or shotcrete buildup from any surface. With a 1-2 punch of performance and safety, KNOCKOUT will send even the toughest deposits crashing to the mat.


For best results, KNOCKOUT is foamed onto the surfaces that require cleaning, allowing the product to cling to the surface and giving it maximum contact time. After 15-20 minutes of activity, rinse the treated areas with water to expose the clean surface. Thicker deposits may require some scrubbing or a second round for full removal.

For exceptionally heavy deposits customers have the option to use BioSol KNOCKOUT HW for a faster, more aggressive clean.

KNOCKOUT HW is a concentrated formulation of the KNOCKOUT blend, using the same proprietary mixture of high-performance chemistries for those heavy-weight bouts. KNOCKOUT HW is best applied as a foam to maximize contact time. After 15-20 minutes, rinse all surfaces with water.


  • Removing cured shotcrete from mining equipment, tools, forms, vehicles and structures.
  • Removing cured concrete from mining equipment, tools, forms, vehicles and structures.


  • Significantly reduces the costs and time associated with the cleanup of cured concrete and shotcrete on equipment, tools, vehicles and structures.
  • Will not harm painted surfaces.
  • Safer than other commonly used concrete dissolvers


  • Non-toxic
  • Lowest EPA aquatic toxicity rating
  • Readily biodegradable
  • Non-bioaccumulative