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Drill-Thin® Thinner is an environmentally compatible, high-performance, multipurpose mud conditioner for rheology control in water-based muds. It is a modified tannin compound that replaces chrome lignosulfonates. Drill-Thin® Thinner works where other additives fail.


  • Contains no chrome yet is superior to commonly used thinners containing chrome
  • Maximum deflocculation and shear strength reduction at low concentrations
  • Excellent performance at low concentrations
  • Superior performance, tolerating salt and gypsum contamination
  • Soluble in systems of high salinity, high hardness, and at any pH
  • Approximately 4 to 8 times more effective than chrome lignosulfonates, depending on conditions
  • Scavenges oxygen and inhibits corrosion
  • High-temperature rheology control - proven effective in excess of 400 ºF (204 ºC)
  • Solution pH is approximately 8.5. No Caustic addition is required to activate the product. Works equally well in low-pH and high-pH systems