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Ground Calcium Carbonate 325-3000 Mesh for Rubber Plastic Filler
Product Description
Ground Calcium Carbonate for Rubber/Plastic Filling (325-3000 Mesh)
Product Positioning
A series of filler-grade calcium carbonates specifically developed by Hongjian Chemical for the rubber and plastic industries. Utilizing advanced dry grinding and precise classification technology, we provide a full particle size range from 325 mesh (~45μm) to 3000 mesh (~5μm).
Core Value
Full Particle Size Coverage: Finely divided mesh grades accurately match customer processes.
Cost-Effectiveness Balance: Seeks the optimal balance between performance and cost.
Quality Stability: Fully automated production lines ensure high batch-to-batch consistency.
Product Mesh Classification & Application Guide
Coarse Mesh Series (325-800 Mesh)
325 Mesh (d97 ≈45μm):
Applications: PVC profiles, pipes, sheets, rubber conveyor belt base layer.
Characteristics: High filling capacity, good flowability, low equipment wear.
800 Mesh (d97 ≈18μm):
Applications: Plastic crates, chairs, rubber soles.
Characteristics: Balances mechanical properties and cost, primary choice for basic applications.
Medium Mesh Series (1250-1500 Mesh)
1250 Mesh (d97 ≈10μm):
Applications: Automotive plastic parts (door panels, dashboards), rubber sealing strips.
Characteristics: Good surface smoothness, high retention of impact strength.
3000 Mesh (d97 ≈5μm):
Applications: Transparent PVC products, silicone rubber, high-end engineering plastic alloys.
Characteristics: Performance close to functional fillers, minimal impact on transparency.
Technical Indicator System
General Chemical Indicators
CaCO₃ Content: ≥ 98.5%
Whiteness: ≥ 93% (≥ 95% for 1250 mesh and above)
Moisture: ≤ 0.3%
pH Value: 8.5 - 9.5
Key Physical Indicators
Mesh
d50 (μm)
d97 (μm)
Oil Absorption (g/100g)
Specific Surface Area (m²/g)
325M
18-22
≤45
14-18
0.8-1.2
800M
8-10
≤18
16-20
1.5-2.0
1250M
5-6
≤10
18-22
2.0-2.8
1500M
4-5
≤8
19-23
2.5-3.2
2000M
3-4
≤6
20-24
3.0-4.0
3000M
2-3
≤5
21-25
3.8-5.0
Surface Treatment Options
Standard Treatment Series
ST Series (Stearic Acid Treatment): Improves hydrophobicity, enhances filler dispersion.
SY Series (Silane Coupling Agent): Enhances interfacial bonding, improves mechanical properties.
SC Series (Composite Treatment): Optimizes comprehensive performance, suitable for high-end applications.
Customized Treatment Services
Personalized surface treatment solutions based on customer resin systems and process requirements.
Application Benefit Analysis
Cost Control
Filling 50-80 phr in PVC pipes reduces costs by 15%-25%.
Filling 20-40 phr in PP injection molding products reduces costs by 8%-15%.
Performance Enhancement
Stiffness Improvement: Flexural modulus increases by 30%-80%.
Dimensional Stability: Thermal shrinkage rate decreases by 20%-40%.
Production Efficiency: Improved processing flowability reduces energy consumption by 5%-10%.
Technical Support & Service System
Selection Guidance
Provides free sample testing and formulation optimization suggestions.
Recommends optimal particle size combinations based on equipment conditions.
Quality Assurance
Provides complete test reports for each batch.
Establishes exclusive quality files for customers to track usage effects.
Supply Guarantee
Maintains stock of conventional mesh sizes for quick delivery.
Supports small-batch customization (≥1 ton) and long-term supply contracts.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2013
Total Annual:
7000000-10000000
Employee Number:
130~150
Ecer Certification：
Verified Supplier
Sichuan Hongjian Chemical is a comprehensive enterprise specializing in the trade of chemical products. Since entering the chemical industry in 1995, it has always been dedicated to providing supply chain services for chemical raw materials, fine chemicals and environmental protection ... Sichuan Hongjian Chemical is a comprehensive enterprise specializing in the trade of chemical products. Since entering the chemical industry in 1995, it has always been dedicated to providing supply chain services for chemical raw materials, fine chemicals and environmental protection ...
