Calcium Carbonate


SARCHEM manufactures one of the most Popular Weighing Materials for the Oilfield Industry chemically Known as Calcium Carbonate.


Course /Medium/Fine

CARB manufactured by SARCHEM is acid soluble grinded Calcium Carbonate. It is used as a Bridging and a weighing agent used in drilling. It is used to increase mud density and is preferred to Barite as it is acid Soluble. It is grinded in three sizes Coarse, Medium and Fine

CARB manufactured by SARCHEM is essentially a Bridging and a weighing agent for controlling Fluid loss and Density. It can be used in both oil based and water based Fluid Systems. CARB F is used essentially as a weighing agent where as CARB C and CARB M are used for bridging and seepage control


  • Acid Soluble and helps in clean up
  • Effective bridging agent, Inert and relatively insoluble
  • Excellent Weighing agent
  • Available in 3 grades : Coarse ,Medium and Fine so the most suitable size can be used  to Suit exact application.


Physical State Fine white free flowing Powder
Specific Gravity 2.6-2.7
Water Soluble Content <1 %
Solubility in 15% HCl >96%
Moisture Content <2%

Particle Size analysis:


CARB Grade Micron Rating
Extra Fine D50 =2-5 Micron
Fine D50 =10-14 Micron
Medium D50 = 135-165 Micron
Coarse D50= 550-650 Micron

CARB manufactured by SARCHEM is packed in 50 KG HDPE bags/1.0 Mt Jumbo Bags Private Labeling and customized packaging is also available on request

Safety and Handling:
CARB manufactured by SARCHEM must be handled as a Industrial chemical, wearing protective equipment and observing the precautions as mentioned in the MSDS.

For Further Information On SARCHEM CARB and Information on Performance and Case Studies Please contact us at

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