Micronized Calcite Powder
Whiteness:80% – 96%
Calcium Carbonate (CaCO₃) Content:95.0% – 98.0%
Moisture Content:≤ 0.3% – 0.5%
Sieve Residue (45μm Sieve):≤ 0.01% – 0.5%
400 mesh:≈ 38 μm
600 mesh:≈ 23 μm
800 mesh:≈ 18 μm
1000 mesh:≈ 13 μm
1250 mesh:≈ 10 μm
One Core Goal: Help You Reduce Overall Costs
We are a calcium powder manufacturer with over 3 years of production experience. Many customers in the plastics, rubber, and coatings industries ask us the same question: how can we reduce costs without sacrificing quality?
Our answer is simple: use micronized calcite powder effectively. It is not just a filler, but a cost-reduction and efficiency-improving solution. The data below demonstrates our confidence in helping customers reduce overall costs.

Core Indicators
|
Indicator |
Our Test Data |
How It Helps You Reduce Costs |
|
Oil Absorption (DBP Absorption) |
≤ 28 ml/100g |
Low oil absorption reduces the need for plasticizer or resin. You can increase filler loading and reduce material costs |
|
Whiteness |
80% – 96% |
High-whiteness grades (≥93%) can partially replace titanium dioxide, significantly reducing formulation cost |
|
Calcium Carbonate (CaCO₃) Content |
95.0% – 98.0% |
High purity allows higher filler loading without affecting product performance |
|
Moisture Content |
≤ 0.3% – 0.5% |
Low moisture prevents agglomeration and screen clogging, reducing downtime and improving efficiency |
|
Sieve Residue (45μm Sieve) |
≤ 0.01% – 0.5% |
Lower residue ensures better dispersion and prevents surface defects such as "white spots," reducing rejection rates |
Real Case Study: Helping a Customer Save Hundreds of Thousands per Year
A large PVC foam board manufacturer is one of our long-term customers. Previously, they used a filler with high oil absorption, which made it difficult to reduce resin usage.
We recommended our 600-mesh micronized calcite powder (D50 ≈ 23 μm, 45 μm sieve residue ≤ 0.1%). As a result, their filler loading increased from 30% to 40%, while board toughness and cutting performance remained stable.
By reducing resin consumption alone, they saved several hundred thousand yuan per year. This case is well known among our customers. We share it because it is fully supported by real production data.
Our Guarantee: We Don't Just Sell Powder - We Provide Solutions
We have an R&D team of 9 engineers specializing in high-filling applications. For example, for a cable material customer, we stabilized the oil absorption of our 800-mesh product below 28 ml/100g, ensuring smooth extrusion even under high filler loading conditions.
We also provide a clear quality guarantee: all products come with a 3-month quality warranty after receipt. If oil absorption or fineness does not meet the agreed standard, we will replace the product unconditionally.
We support sample testing before ordering. We can provide up to 5 kg of free standard samples for evaluation. If you are satisfied with the test results, you may proceed with bulk orders.
Our micronized calcite powder is ready for your application.
Mature Specifications and Recommended Filling Levels
We support OEM and ODM services. The following table presents our mature, market-tested solutions for your reference.
|
Specification (Mesh) |
Median Particle Size (D50) |
Typical Applications |
Recommended Filling Level |
|
400 mesh |
≈ 38 μm |
Plastic masterbatch, rubber products |
15% – 30% |
|
600 mesh |
≈ 23 μm |
PVC pipes, foam boards, ceiling boards |
20% – 40% |
|
800 mesh |
≈ 18 μm |
Cable materials, primers |
10% – 25% |
|
1000 mesh |
≈ 13 μm |
Water-based coatings, interior paints |
20% – 60% |
|
1250 mesh |
≈ 10 μm |
Inks, paper coating, high-grade PVC |
10% – 30% |
Simple Cooperation Process
Delivery is fast. Standard products ship within 3–5 working days after receipt of deposit.
We offer flexible trade terms, including EXW, FOB, and DDP.
After-sales service is prompt. Our support team responds within 1 hour for any issue.
Quality inspection is fully transparent. We accept third-party inspections from SGS, BV, or any authorized organization.
Choosing our micronized calcite powder means choosing a proven solution that helps you directly reduce production costs and improve efficiency.
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