Manufacturers, Exporters, Suppliers of Calcium Carbonate

Calcium Carbonate

Calcium Carbonate – Acid‑Soluble Bridging & Weighting Agent in Assam

Filtron Envirotech (India) is a leading Manufacturer, Exporter & Supplier of Calcium Carbonate for diverse applications across Assam. From the flooring systems in the state's new commercial complexes to the drilling fluids used in infrastructure projects, our calcium carbonate provides reliable performance and consistent quality in Assam.

Calcium Carbonate is a versatile mineral used in drilling fluids as a weighting and bridging agent, in construction as a filler and cement additive, in the paint and coatings industry, and in various chemical and agricultural applications. In Assam, our calcium carbonate is used by the Guwahati Metro contractors for drilling operations, by the state's paint manufacturers in Amguri, Nalbari, and Guwahati, by PVC pipe manufacturers serving the construction industry in Assam, and by agricultural lime suppliers serving the farming regions around Assam. We provide various grades and particle sizes to meet specific application requirements. (Keywords: calcium carbonate powder, industrial minerals, paint fillers, drilling mud additives Assam)

Advantages:

  • Acid soluble – Dissolves easily in 15% HCl for simple well cleanup and reduced formation damage.
  • Effective bridging agent – Seals pore throats and micro‑fractures, controlling fluid loss.
  • Excellent weighing agent – Increases mud density without requiring barite.
  • Available in 3 grades (Coarse, Medium, Fine) – Allows selection of the optimal particle size for specific downhole conditions.

Properties:

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:

Calcium Carbonate Grade Micron Rating (D50)
Extra Fine D50 = 2 – 5 μm
Fine D50 = 10 – 14 μm
Medium D50 = 135 – 165 μm
Coarse D50 = 550 – 650 μm

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