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

Applications and Functions

  • 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-MUD® grouting system 
  • Aid in controlling loss of circulation


  • NSF/ANSI/CAN Standard 60 certified 
  • 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


Safety Data Sheets (SDS)

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