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Cetco® Tablets - Bentonite Tablets 1/4", 3/8", 1/2"

Ceto tabletsFor forming a chemically resilient, low-permeability, flexible seal

Cetco ® Tablets are organic free, high-swelling pure sodium bentonite compressed into 1/4”, 3/8” and 1/2” diameters tablets.  Cetco ® Tablets isolate screened intervals of monitoring wells and provide an excellent seal for abandoned boreholes.  The 1/4” tablets are ideal for tight annular spaces, while the 3/8” and 1/2” tablets are useful for larger boreholes.  Cetco ® Tablets are certified to NSF/ANSI Standard 60, Drinking Water Treatment Chemicals – Health Effects.


  • Chemically stable
  • Permeability range of 1 x 10-7 to 1 x 10-9 cm/sec
  • Swells to 10-15 times their dry volume when hydrated with fresh water
  • Self-sealing; remains flexible when saturated and will rehydrate
  • Available in 50 lb. pails


   NSF Certified