Baroid N-Seal™

N-SEAL™ acid soluble lost circulation material is specially formulated, extrusion-spun mineral fiber. Due to its solubility in weak acids, N-SEAL lost circulation material is easily removed from production zones.

Close block


N-SEAL lost circulation material can be used as an additive for loss of circulation in concentrations up to 70 lb/100 gallons (86 kg/m3).


  • NSF/ANSI Standard 60 certified
  • Acid soluble
  • Can be easily wetted
  • Inorganic and non-fermenting