Micronized Calcite
Sieve Residue (45μm Sieve):≤ 0.01% – 0.5%
Whiteness Stability:Batch-to-batch variation ≤ ±1.5
Oil Absorption (for Plastic/Rubber):≤ 28 ml/100g
Calcium Carbonate (CaCO₃) Content:95.0% – 98.0%
400 mesh:≈ 38 μm
600 mesh:≈ 23 μm
800 mesh:≈ 18 μm
1000 mesh:≈ 13 μm
1250 mesh:≈ 10 μm
Core Product: Three Upgrades from Micronization Technology
We are a calcium powder manufacturer with over 3 years of practical experience. Many customers ask us about the difference between ordinary calcite powder and our micronized calcite. Our answer is simple: finer, more uniform, and more reliable.
Ordinary grinding only makes the powder "fine." Our micronization process, combined with precision classification technology, makes it "uniform." This means every particle has a highly consistent size. The real data below is the best proof of our process advantages.
Core Indicators
|
Indicator |
Our Micronized Test Data |
What Problem Does It Solve for You? |
|
Median Particle Size (D50) |
5μm – 15μm |
Narrow particle size distribution. No coarse particles, preventing "white spots" or "rough spots" on product surfaces |
|
Sieve Residue (45μm Sieve) |
≤ 0.01% – 0.5% |
Strict control standard. Lower residue ensures smoother dispersion and prevents screen clogging |
|
Whiteness Stability |
Batch-to-batch variation ≤ ±1.5 |
We can guarantee whiteness variation in contracts. Your paint or plastic color remains stable batch after batch, reducing the need for frequent adjustments |
|
Oil Absorption (for Plastic/Rubber) |
≤ 28 ml/100g |
Low oil absorption enables higher filler loading. You can reduce resin usage and directly lower costs |
|
Calcium Carbonate (CaCO₃) Content |
95.0% – 98.0% |
High purity means low impurities. Improves insulation performance and avoids conductivity issues caused by impurities |
Our Confidence: Full-Chain Support from R&D to After-Sales
This data does not come from nowhere. We have strong confidence supported by our R&D team of 9 engineers. They focus on one question: how to make the powder easier to use.
For example, for an ink customer, we reduced the 45μm sieve residue of our 1250-mesh product from 0.02% to 0.01%. This improvement allowed the ink's fineness and gloss to meet import standards.
We also have real customer cases. A large PVC foam board manufacturer experienced brittleness and cracking due to uneven filler particle size. After switching to our 600-mesh micronized calcite, the board's toughness improved significantly, and the chipping rate during cutting dropped by 70%. This case is well known among our customers.
We also provide a strict quality guarantee. All micronized products come with a 3-month quality warranty after receipt. If any issue occurs on our side, such as fineness not meeting standards, we will replace the product unconditionally. This is not just a slogan.
Micronized Series: Mature Solutions for Different Industries
We support OEM and ODM services. Each specification below is a mature, market-tested product. You can directly find the right match.
|
Specification (Mesh) |
Median Particle Size (D50) |
Typical Applications |
Real Customer Feedback |
|
400 mesh |
≈ 38 μm |
Plastic masterbatch, rubber filling |
Acts as a "skeleton." Customers report increased hardness and smoother surfaces |
|
600 mesh |
≈ 23 μm |
PVC pipes, foam boards, ceiling boards |
Improves toughness. More stable pipe stiffness and reduced edge chipping during cutting |
|
800 mesh |
≈ 18 μm |
Cable materials, rubber products, primers |
Ensures good extrusion flowability. Customers report stable processing efficiency |
|
1000 mesh |
≈ 13 μm |
Water-based coatings, inks |
Easy dispersion with no settling. Improves hiding power and reduces titanium dioxide usage |
|
1250 mesh |
≈ 10 μm |
High-grade PVC/PE, coil coatings, paper coating |
Enhances gloss and printability. Produces finer printed patterns |
Our Cooperation Method: Transparent, Flexible, and Responsible
We understand that choosing a supplier means choosing a long-term partner.
First, testing before ordering: we can provide a free standard sample of up to 5 kg. You can test it directly on your production line. If you are satisfied, we proceed with pricing and orders.
Second, transparent production process: after you place an order, we provide production updates every 7 days with photos or short videos. You may also request updates at any time.
Third, fast delivery and flexible terms: standard products ship within 3–5 working days after receiving the deposit. We support EXW, FOB, and DDP terms based on your needs.
Fourth, worry-free after-sales service: our after-sales team responds within 1 hour for any issue. Third-party inspections such as SGS are fully supported.
Choosing our micronized calcite means you get more than just a bag of powder - you get a complete product solution supported by data, real cases, and reliable commitments.
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