Information Request


BENSEAL® granular (8-mesh), natural Wyoming sodium bentonite is used in the sealing and grouting of well casings and earthen structures. BENSEAL is not recommended for use as a drilling mud.

Product Code


Product Specification

  • Appearance : Bluish to gray granules
  • Dry screen analysis : 85% as 8 mesh
  • Volume, ft3 /sack : 0.7 (as packaged)
  • Specific gravity : 2.6
  • Permeability : less than 1 x 10-8 cm/sec (in fresh water)
Information Request

Product Features

  • Seal or grout plastic or steel casings in monitor and water well construction
  • Seal or plug abandoned boreholes
  • Seal leaking ponds, ditches and dams
  • Soil stabilization
  • Prepare BENSEAL and EZ-MUDĀ® grouting system
  • Aid in controlling loss of circulation

Product Benefits

  • High swelling capacity
  • Uniform particle size
  • No heat of hydration
  • Prevents commingling of aquifers and contamination from surface
  • Forms a flexible seal to protect casing from corrosive contaminants
  • Allows for hole re-entry
  • NSF/ANSI Standard 60 certified

Product Documents