25 kg craft bagsMixed containerDHL/FedEx samples
High-Purity Calcined Mica Powder & Flakes
Engineered for Superior Thermal Stability (Up to 1100°C) and Dielectric Insulation. Directly processed from Lingshou’s mineral hub through precision calcination (850°C–1050°C). Zero structural moisture, ultra-low LOI (<0.5%), and uniform particle distribution for fire-resistant mica tape, electrical insulation, and specialty coatings.
Key Technical Highlights
- Continuous Heat Resistance: >1100°C (ASTM C351 non-combustible)
- Loss on Ignition (L.O.I.): ≤ 0.50% via high-temperature dehydroxylation
- Dielectric Strength: ≥ 20.0 – 24.5 kV/mm (IEC 60243-1)
- Logistics Advantage: Mixed container consolidation supported; 7-10 days fast dispatch to Tianjin Port
Available Mesh Specifications
| Mesh Size | Particle Size | Typical Applications |
|---|---|---|
| 200 Mesh | 75 μm | Fireproof coatings, welding electrode coatings |
| 325 Mesh | 45 μm | Fire-resistant mica tape matrix, high-temp composites |
| 600 Mesh | 23 μm | Precision engineering plastics, specialized electrical insulation |
Technical Data Sheet (TDS)
| Specification Parameter | Typical Value |
|---|---|
| Calcination Temperature | > 850 – 1100 °C |
| Loss on Ignition (LOI) | ≤ 0.5% |
| Dielectric Strength | ≥ 20 kV/mm |
| Whiteness | 70% – 78% |
| Crystal Water | Completely Removed |
| SiO2 Content | 43% – 47% |
| Al2O3 Content | 31% – 35% |
Key Industrial Applications
- Fire-Resistant Cable Tape: Enhances breakdown voltage and high-temperature barrier in refractory cables.
- High-Voltage Electrical Insulation: Epoxy resin filler, mica paper, and commutator insulation.
- Thermal Protective Coatings: Prevents thermal deformation and cracking in industrial furnaces.
Technical Specifications
| Property | Testing Standard | Specification / Value |
|---|---|---|
| Calcination Temperature | Internal Quality Protocol | 850°C – 1050°C Controlled Tunnel Kiln |
| Continuous Heat Resistance | ASTM C351 | ≥ 1100°C |
| Loss on Ignition (L.O.I.) | ASTM C25 | ≤ 0.50% |
| Dielectric Strength | IEC 60243-1 | ≥ 20.0 – 24.5 kV/mm |
| Available Mesh Sizes | Sieve Analysis | 200 mesh (75μm), 325 mesh (45μm), 600 mesh, 1-3mm flakes |
Packaging & Shipping
Packaging25 kg multi-wall paper bags with PE inner liner, or 1000 kg FIBC jumbo bags.
LoadingPalletized with heat-treated wooden pallets (ISPM 15 compliant) & shrink wrap.
Shipping ReferenceApprox. 18-20 MT per 20ft container (FCL).