Sodium bentonite can reach OCMA grade.

Product information After the purification, modification, processing,and thenthe bentonite for drilling mud forms, which quality meets European standard of OCMA and the United States of API grade. Product use Bentonite has a big expansion after meeting water, has a good colloidal nature, can increase the viscosity of suspension in the drilling mud when used, can increase the lubrication of drilling, cleaning the debris during drilling, as well as for the rig-freeing agent, so which is widely used in complex geological formation drilling. Physical & Chemical Index OCMA Viscosity 600 r/min≥30Yield value≤6Filtration≤16 Cm3Residue 75μm≤2.5%Moisture≤13%API Viscosity 600 r/min≥30Yield value≤3Filtration≤15Residue 75μm≤4Moisture≤13