Common Grinding Methods: Hydraulic Milling vs Roller Milling
In the calcium carbonate powder (CaCO3) manufacturing industry, choosing the right grinding method plays a crucial role in optimizing performance and ensuring…
Read moreCalcium Carbonate Powder
Vincarb and NH-Hcarb grades for plastics, paint, rubber and paper.
GLOBAL MINERALS
Purity and excellence from Vietnam's limestone
Since 2004, Nhat Huy Group has manufactured and exported calcium carbonate powder from Vietnam's high-purity limestone — 98.5% CaCO3, 98% whiteness — to customers in more than 40 countries.
Exceptional purity
98.5% CaCO3, 98% whiteness
Versatile grades
5–74 µm, coated and uncoated
Logistics & capacity
10,000-ton warehouse, containers shipped every month
Technical expertise
Support from processing to end application
PRODUCT TYPES
Coated or uncoated?
Two surface treatments, one limestone. Pick the family first, then the grade.
Coated powder
Treated with stearic acid for dispersion in polymer systems and higher moisture resistance
- Improved dispersion in polymer systems
- Higher moisture resistance
- Films, sheets, rubber, adhesives and sealants
Unoated powder
Natural, untreated powder that improves stiffness, whiteness and opacity.
- Higher mechanical strength and stiffness
- Better whiteness and opacity
- Paper, paints, rigid PVC pipes and construction
PRODUCT PORTFOLIO
Product grades
32 grades under the Vincarb and NH-Hcarb brands. All grades meet the specifications below; each grade page carries its own technical data sheet.
All grades meet the following specifications
| CaCO3 | 98.5% Min |
| Brightness | 95% Min |
| Whiteness | 98% Min |
| Fe2O3 | 0.01% Max |
| MgO | 0.02% Max |
| SiO2 | 0.03% Max |
| Al2O3 | 0.02% Max |
| Density | 2.65–2.7 g/cm³ |
| Hardness | 3 Mohs |
| Moisture | 0.2% Max |
| Oil absorption | 23 g/100 g |
| Particle size | 5–74 µm |
| Coated grades | 1% stearic acid |
Packaging & deliver
- 25 kg and 50 kg PP/PE or paper bags, or jumbo bags
- Custom packaging and labels on request
- Every container loading is supervised and photo-recorded
- Two plants in Nghe An, priority bookings with major shipping lines
Need a custom coating or particle size? Our lab adjusts grades to your process.
Ask our technical teamShow more
INSIGHTS
Industry & market insights
CaCO3 Powder Types: Coated, Uncoated & Ultrafine
Common CaCO3 Powder Types Calcium Carbonate Powder (CaCO3 Powder) is one of the essential raw materials used across various industries. At Global…
Read moreNeed a grade recommendation for your application?
Our technical team replies within one business day.