HIGH-PURITY NATURAL EXTENDER

Uncoated Calcium Carbonate Powder (CaCO3)

Ultra-fine natural ground calcium carbonate powder with extreme chemical purity, superior brightness (>= 96%), and exceptional whiteness (>= 98%).

NATURAL HIGH-WHITENESS INDUSTRIAL MINERAL

Manufactured using automated European dry ball milling and classifying lines, our uncoated CaCO3 powder features ultra-low iron (Fe2O3 <= 0.02%) and low silica (SiO2 <= 0.15%), ensuring top-grade chemical consistency.

It acts as an essential functional filler and white pigment extender that optimizes opacity, brightness, and surface texture while significantly decreasing total raw material costs.

TECHNICAL DATA SHEET (TDS)

Certified laboratory assay values and physical-chemical test specifications.

Parameter / Property Guaranteed Value Test Method
Chemical Formula CaCO3 (Calcium Carbonate) ISO 3262-1
CaCO3 Purity Content ≥ 98.50% ISO 3262-1
Whiteness (R457) ≥ 98.0% HunterLab Colorimeter
Brightness (Ry / ISO 2470) ≥ 96.0% Spectrophotometer
Fe2O3 Content ≤ 0.02% XRF Spectroscopy
SiO2 Content ≤ 0.15% XRF Spectroscopy
MgCO3 Content ≤ 0.40% Complexometric Titration
Mean Particle Size (D50) 1.5 – 3.5 μm Malvern Mastersizer 3000
Moisture Content ≤ 0.20% Karl Fischer Titration
pH Value 8.5 – 9.5 ISO 787-9
Loss on Ignition (LOI) 43.5% – 44.0% Gravimetric Analysis

INDUSTRIAL APPLICATIONS

Engineered for high-performance manufacturing and architectural longevity.

Paints & Architectural Coatings

Replaces expensive TiO2 pigment, enhances dry film opacity, scrub resistance, and sheen.

Papermaking & Pulp Industry

Improves paper brightness, opacity, printability, and reduces acid-free paper manufacturing costs.

Tile Adhesives & Construction Mortar

Provides ideal rheology, bonding strength, and dimensional stability in tile grouts.

Ceramics & Sanitaryware

Acts as a pure source of CaO enhancing mechanical fluxing and ceramic body whiteness.

REQUEST TECHNICAL DATA SHEET & FREE SAMPLES

Direct supply from our quarries & plant in Laos. Fast delivery across global trade corridors.

FREQUENTLY ASKED QUESTIONS

Q: How does Viet Lao Stone guarantee whiteness consistency?

A: Our quality control laboratory conducts batch-wise XRF and HunterLab spectrophotometric testing on every export batch.

Q: What particle size ranges are available?

A: We offer standard micron ranges: 5um, 10um, 20um, 45um (325 mesh to 2500 mesh) or custom gradations on order.

152 MPa

Compressive Strength

< 0.85%

Water Absorption

2.82 g/cm³

Density

27 Tons

Max Loading / 20ft Cont

ARCHITECTURAL APPLICATIONS

Natural basalt stone is the premium choice for high-durability landscaping and modern infrastructure.

Paving & Walkways

Exceptional compression strength and slip resistance make it the top choice for garden paving and public pavements.

Wall Cladding

Delivers timeless natural beauty and permanent durability for villa facades and resort walls.

Public Projects

Extremely weather-resistant and durable, perfect for squares, plazas, parks, and high-end urban spaces.

CONTACT US

Contact our export division today to request test samples, detailed specifications, and bulk pricing.

Head Office (Hanoi)
HA01 -105 Hai Au, Vinhomes Ocean Park, Gia Lam District, Hanoi, Vietnam
Quarry & Processing (Laos)
Natural basalt quarries, Laos
Direct Email
vietlaostone@gmail.com
Hotline (Vietnam)
+84993101988
Hotline (Laos)
+856 20 9131 6666

Contact via WeChat

B2B INQUIRY FORM

Please fill out the form below. Our B2B sales team will get back to you within 24 hours.







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DABAZAN BASALT

Leading natural basalt miner and supplier in Vietnam & Laos.


VIET LAO STONE MINERALS JSC

📍 Office: HA01 -105 Hai Au, Vinhomes Ocean Park, Gia Lam District, Hanoi, Vietnam
📞 Hotline VN: +84993101988 | Hotline LA: +856 20 9131 6666
✉️ Email: vietlaostone@gmail.com

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