SWR 12 C
JAVA
Filler
CaCO3 Powder
Supersonic Chemical Industry
Supersonic Chemical Industry
Lihat Profil SellerHigh-Purity, Stearic Acid-Coated Filler for Enhanced Dispersibility in Plastics, Rubber & Coatings
SWR 12C is a premium-grade, superfine calcium carbonate powder engineered for high-performance applications across multiple industries. Produced using advanced technological processes from ultra-white, high-purity limestone, this product is coated with stearic acid to enhance dispersibility, compatibility, and processing efficiency. With a median particle size of 4.5 ± 0.5 µm and low oil absorption (≤15 g/100g), SWR 12C delivers exceptional brightness (≥91.50%), whiteness (≥85.50%), and purity (>99.51% CaCO₃), making it ideal for engineering plastics, rubber compounds, solvent-based paints, cable sheaths, and porcelain products. Rigorously tested under ISO standards and packaged in 25 kg PP woven bags for ease of handling.
Specifications
- Particle Size (D50): 4.5 ± 0.5 µm (Mastersizer 3000E)
- Top Cut (D98): 20 ± 2 µm (Mastersizer 3000E)
- Specific Surface Area: 800 ± 50 m²/kg (BET Method)
- Volume <2 µm: 21 ± 1% (Laser Diffraction)
- Stearic Acid Coating: 1.0 ± 0.1% (Titration)
- Brightness (ISO 2469/70): ≥91.50% (ISO 2469/70)
- Whiteness Index (CIE): ≥85.50% (CIE Standard)
- Moisture Content: ≤0.20% (Loss on Drying)
- Density (Raw Material): 2.72 g/cm³ (Pycnometer)
- Oil Absorption (ISO 107/5): ≤15 g/100g (ISO 107/5)
- CaCO₃ Content: ≥99.51% (XRF / Titration)
- Impurities (MgO, Fe₂O₃, Al₂O₃, SiO₂): <0.36% each (ICP-OES)
Applications
- Engineering plastics and masterbatches
- Rubber compounds and cable sheathing
- Solvent-based paints and coatings
- High-gloss ceramics and porcelain
- Polymer composites requiring dimensional stability
Advantages
- Ultra-fine particle size for enhanced surface finish
- Stearic acid coating improves dispersion and reduces agglomeration
- High brightness and whiteness for aesthetic applications
- Low moisture and oil absorption for stable formulations
- >99.5% CaCO₃ purity ensures chemical inertness and reliability
Processing Conditions
- Recommended mixing temperature: 60–120°C
- Compatible with twin-screw extruders and internal mixers
- Optimal loading level: 10–40% by weight depending on matrix
- Pre-drying recommended if stored in humid conditions (>60% RH)
Regulatory Compliance
- ISO 9001:2015 Certified Production
- REACH Registered
- RoHS Compliant
- Non-hazardous per GHS classification
Storage Conditions
- Store in dry, well-ventilated area
- Keep away from moisture and direct sunlight
- Shelf life: 24 months in original sealed packaging
| Brand | Supersonic Chemical Industry |
|---|---|
| Manufacturer | Supersonic Chemical Industry |
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