General Description
CaCO powder for WPC and SPC is produced from high-purity limestone/marble, processed by advanced ultra-fine grinding technology with strict control over particle size, whiteness, and particle size distribution.
The product is specially designed for extrusion and compounding processes in Wood Plastic Composite (WPC) and Stone Plastic Composite (SPC) production.
Key Technical Features
High CaCO purity ( 97â??99%)
Fine and uniform particle size
Typical D50: 2-10 µm for WPC
Typical D50: 2-5 µm for SPC
High whiteness and excellent color stability
Low heavy metal and impurity content
Excellent dispersion in PVC, PE, and PP matrices
Good compatibility with stabilizers, lubricants, and additives
Function of CaCO in WPC
Improves dimensional stability
Enhances stiffness and flexural strength
Reduces shrinkage and deformation during extrusion
Improves surface quality and processing performance
Reduces overall material cost
(Typical dosage: 5-25%)
Function of CaCO in SPC
Acts as the main stone core component
Increases density, rigidity, and load-bearing capacity
Enhances thermal and dimensional stability
Improves acoustic performance (noise reduction)
Increases extrusion efficiency and board flatness
(Typical dosage: 60-75%)
Applications
SPC flooring
WPC decking and profiles
Outdoor wood-plastic boards
Skirting boards and SPC/WPC accessories
Decorative panels and extruded profiles
Packaging
Dry white powder
25 kg bags / Jumbo bags upon request
Product Description
Limestone Granules are produced from high-purity natural limestone, crushed and sieved into controlled particle size ranges, specifically designed for Artificial / Engineered Stone manufacturing.
With high CaCO3 purity, natural white color, and low impurity content, the product improves mechanical strength, color consistency, and surface appearance of artificial stone products.
The granules feature clean surfaces and uniform particle distribution, ensuring excellent compatibility with polyester, epoxy, and acrylic resin systems during mixing, vibration, and vacuum pressing processes.
Applications
- Artificial / Engineered Stone production
- Kitchen countertops, vanity tops, sinks
- Decorative slabs and stone�¢??resin composite products
Key Features
- High calcium carbonate purity
- Stable whiteness and brightness
- Low Fe�¢??O�¢?? content to prevent discoloration
- Uniform particle size with minimal fines
- Suitable for vacuum pressing and vibration molding
Particle Size:
Residues on 30mesh = 0%
Residues on: 100mesh >98%
Passing: 100mesh <2%
Size: 0,1mm- 0,6mm"
Product name: White Limestone Powder (CaCO3)
Material Source: Natural high-purity white limestone from Nghe An, Vietnam.
Appearance: White powder
CaCO3 content: Min 98%
Brightness (R457): 92 - 96.5%
Whiteness (CIE): 95 - 98%
Moisture: max 0.2%
Particle size (D97): 4 - 280 micron
D50: 0.8 - 100 micron (adjustable as per requirement)
Product Description: Our white limestone powder is manufactured from high-quality natural white limestone through advanced grinding and classification systems such as vertical roll�¡�º�» mills, hydraulic vertical roller mill, disc grinding mills.
The product features high brightness, excellent whiteness, stable particle distribution and superior dispersion properties.
It is widely used as a functional filler in paint, plastic (PVC, PP, PE, masterbatch, WPC), paper, rubber, and adhesive industries, helping to reduce production costs and improve mechanical and optical performance.
Product name: White Limestone Powder (CaCO3)
Material Source: Natural high-purity white limestone from Nghe An, Vietnam.
Appearance: White powder
CaCO3 content: Min 98%
Brightness (R457): 92 - 96.5%
Whiteness (CIE): 95 - 98%
Moisture: max 0.2%
Particle size (D97): 4 - 280 micron
D50: 0.8 - 100 micron (adjustable as per requir�ªmnt)
Product Description: Our white limestone powder is manufactured from high-quality natural white limestone through advanced grinding and classification systems such as vertical rollẻ mills, hydraulic vertical roller mill, disc grinding mills.
The product features high brightness, excellent whiteness, stable particle distribution and superior dispersion properties.
It is widely used as a functional filler in paint, plastic (PVC, PP, PE, masterbatch, WPC), paper, rubber, and adhesive industries, helping to reduce production costs and improve mechanical and optical performance.
We are very confident to be a reputable company in Vietnam, supplier of Limestone for Cement and Steel at high quality and best price.
We supply 2 kinds of limestone: Limestone for Cement Industries and Limestone for Steel.
Packing detail:
1. Packing:Â Bulk Vessel
2. Quantity: 200,000Mt per month
Delivery detail:
1. Delivery time: 20 days after the order confirmed
2. Port loading: Cam Pha, Quang Ninh, Vietnam.
We have high quality limestone, boulders, stone, aggregate that suits for sea backfilling, concrete, and other constructions.
Hardness: >9
CaO > 53%
Silic > 0.82%
Magnesia > 1%
Size: 60-80cm
20-30cm
10-20cm
5-8cm
2-5cm
1-2cm
Others: Based on your requirements.
Note: The given FOB price is without VAT.
USD / ton fob hai phong port
MAIN APPLICATIONS:
PLATIC: RIGID PVC - PROFILES - CALENDERED SHEETS - PIPES
POLYOEFINS" COMPOUND/ MASTERBATCH FOR MOULDINGS / FILMS
Fineness Top cut (D97%) 12 um
Mean Particle size ( D 50%)
Specific surface Area 2319 m2/ Kg
Whiteness ( Konica minolta 98%
Brightness CR 410 - Japan) 96%
Moisture ex Works 0.2 %
Density 2.65 - 2.7 / cm 3
pH value 8-9
Oil Absorrption 17g/100g
Acid Stearic 1g/100g
1.PVC COMPOUNDS FOR WIRE AND CABLE
2.SOFT SHEATH GRADE PVC GRANULES
3.ANY COLORS
4. TYPE: A, C, D, E, ST1, ST2, ST4, ST5, ST9, ST10...FR-ST1, FR-ST2....
5,Use and standard: wire and cable
6,Process: extrusion and injection
7,Appearance: cylindrical particles, plastication should be good, the color and luster is even, without obvious impurity.
8,color: Any colors, base on requirement.
9,Packing: 25kg net weight per in a bag with insider PE bag or others
10, Transportation and storage:
This kind of product in the transportation should not be weathered, should be stored in a clean, cool, dry and ventilated warehouse , storage period is from the date for a year.
We will also produce the products according with customer's requirement, For example, Flame-resisting compounds, Low temperature resisting compounds, Heat-resistant compounds, and low smoke low halogen compounds, Transparent PVC compounds etc.
in PP Woven Laminated Kraft Paper bag of 25 kgs net each, palletized by wooden pallet
