CaCO₃RM-GCC-001

Ground Calcium Carbonate (GCC)

Ultrafine purity for premium performance applications

Ultrafine GCC powder with controlled particle size (D50: 2–15 µm) and exceptional brightness (96+).

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CaCO₃

Purity

≥ 98%

Mesh Size

D50: 2–15 µm

Whiteness

96%+

Product Overview

Ground Calcium Carbonate (GCC) represents the premium end of calcium carbonate processing. Our GCC is precision-ground to achieve D50 values from 2 to 15 micrometers, making it suitable for applications where particle size, brightness, and surface area are critical. In PVC pipes, GCC reduces cost while maintaining impact strength. In paints, it provides superior opacity and smooth film formation. In printing inks, ultrafine GCC provides smooth flow and consistent colour density. In cable compounds, it ensures smooth extrusion and improved electrical properties. Our GCC starts from 98%+ purity limestone and is classified through advanced air classifier systems.

Industrial Applications

PVC Pipes & Profiles

Cost-reducing filler that maintains impact strength. Ultrafine for smooth extrusion.

Paints & Coatings

Premium extender pigment with high brightness for superior opacity.

Printing Inks

Smooth flow, consistent colour density, and rapid drying.

Cable & Wire

Smooth extrusion, consistent insulation, improved electrical properties.

Masterbatch

Excellent dispersion and consistent colour in PP/PE masterbatch.

Physical Properties

Chemical Formula	CaCO₃
CaCO₃ Content	≥ 98%
Brightness (ISO)	96+
D50 (Median Particle Size)	2–15 µm
D97 (Top Cut)	10–45 µm
Moisture	≤ 0.2%
pH	8.5–9.5
Specific Gravity	2.71 g/cc
Oil Absorption	13–16 g/100g
Residue on 45µm	≤ 0.1%

Chemical Composition

CaCO₃	≥ 98%
MgCO₃	≤ 0.5%
SiO₂	≤ 0.3%
Fe₂O₃	≤ 0.05%
Al₂O₃	≤ 0.15%
Moisture	≤ 0.2%
LOI	43–44%

Packaging Options

✓ 25 kg HDPE bags
✓ 50 kg HDPE bags
✓ 1 MT jumbo bags / FIBC

Available Standard Grades

We manufacture specific grades optimized for different industrial applications. Custom micron sizes available on request.

Grade Name	Mesh / Particle Size	Primary Application
RM-GCC-2	D50: 2 µm	Premium Coatings, Inks
RM-GCC-5	D50: 5 µm	Paints, PVC Pipes
RM-GCC-10	D50: 10 µm	Plastics, Masterbatch
RM-GCC-15	D50: 15 µm	Cable, General Purpose

Frequently Asked Questions

What is the difference between GCC and PCC?

GCC is mechanically ground natural limestone. PCC is chemically precipitated. GCC is more cost-effective for most applications.

What particle sizes do you offer?

Our GCC is available with D50 from 2 µm (ultrafine) to 15 µm (fine).

Is GCC suitable for PVC pipes?

Yes. Our GCC maintains impact strength in rigid PVC at moderate loading levels.

Ground Calcium Carbonate (GCC)

RM-GCC-001 · Direct from Manufacturer