Information Request


HOLEPLUG® naturally occurring Wyoming sodium bentonite clay is a sized and graded chip material used to seal and plug earthen boreholes.

HOLEPLUG bentonite is available in two particle size grades:

 --> HOLEPLUG® 3/4" bentonite (100% of particles pass through 3/4" screen; all particles retained on 3/8" screen)
 --> HOLEPLUG® 3/8" bentonite (100% of particles pass through 3/8" screen; all particles retained on 1/4" screen)

Product Code


Information Request

Product Features

  • Grouting annulus in all types of wells, particularly environmental monitoring well applications
  • Sealing above gravel packs
  • Plugging decommissioned boreholes
  • Stemming shotholes
  • Sealing around conductor pipe
  • Sealing lost circulation zones
  • Shutting off artesian flow

Product Benefits

  • Helps prevent entry of surface water into boreholes
  • High swelling potential
  • In situ swelling to provide a superior seal with excellent casing stabilization
  • Easier to apply than pellets
  • Cost effective
  • Simple to apply, mixing not required
  • Helps prevent vertical movement of fluids in the hole between porous zones
  • Helps form a permanent, flexible downhole seal
  • Helps allow hole re-entry
  • Rehydratable
  • NSF/ANSI Standard 60 certified

Product Documents