Chrome free lignosulfonate is mainly used in drilling mud as fluid loss control agent. With good capability to anti-high temperature,anti-electrolytes.Eco-friendly and easily work with other chemical additives.

Main Specification

Material insoluble to water2.5%max
PH(2% water solution)2.8~3.8
AppearanceBrown powder

Mud performance

ItemFresh water drilling mudSalt water
drilling mud
Normal temperatureApparent  viscosity  mPa.s≤20≤25
Rate of reducing viscosity %≥85≥65
High temperatureApparent viscosity   mPa.s≤35≤45
Rate of reducing viscosity %≥60≥45


1.Excellent thinning performance and filtration control capacity ,the mud performance of fresh water is better than salt water mud.

2.Anti-high temperature 150℃,it can cooperate with other admixture agent.

3.Good emulsifying effect in mud.


25kg net weight. With PE film bag inside and paper-plastic complex bag outside.