Ligno-Drill is a specially formulated thinning and filtration control agent. It is a free flowing brownish black powder having high solubility in cold water. It is equally effective in fresh water, salty water, lime and gypsum treated drilling fluids. Its thinning efficiency and filtration control properties are comparable with any other Lignosulfonate thinning and filtration control agent.

Physical Properties


Free flowing powder


Totally soluble in fresh and sea water at pH 9 and above

Moisture contents

9 % max.

Thermal stability

160oC Min.

Active sulfonated lignin content

85 % Min.

pH of 5% solution

6 – 7 approx.

Potassium Ion content

2000 ppm Min.

Recommended Treatment

Pilot testing is recommended to determine the best treatment for individual systems.


Hazard Identification
  • Non-hazardous to living organism and environment in small quantities.

  • May cause irritation in case of contact with human skin.

  • Not for human use

  • Non-flammable

Ligno-Drill does not have a restricted classification for transportation by regulatory agencies. It is a non-combustible product.

Spilled material can be washed with a stream of water.   

First Aid 
On Skin contact: Wash with plenty of water and soap.

On contact with eyes: immediately wash affected eyes under running water and consult an eye specialist.

Ligno-Drill should be stored in a clean and dry environment.  

25 Kg. 3-ply paper sacks with polyethylene inner liner.