Product Description
99.8% Al2O3 metallized ceramics for high-voltage insulation (126kV-1000kV). Ultra-white, low sodium content, optimized for SF6 circuit breakers & GIS. Custom formulations available.
99.8% High-Purity Alumina Ceramics for High-Voltage Electrical Insulation
Engineered for critical high-voltage applications, our 99.8% Al2O3 alumina ceramics provide superior electrical insulation and mechanical stability in demanding environments from 126kV to 1000kV systems. These ultra-white, low-sodium ceramics are specifically formulated for SF6 circuit breakers, GIS insulation, and epoxy resin casting systems.
Key Electrical Insulation Properties
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Ultra-High Purity: 99.8% Al2O3 content with controlled impurity levels (Na₂O ≤ 0.20%)
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Superior Dielectric Performance: Low conductivity (40-100 μS/cm) ensures reliable insulation
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Optimized Processing: Controlled viscosity (3000 cp) and pot life for seamless epoxy resin integration
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Precision Engineering: Tight particle size distribution (D50: 3-22μm) for consistent performance
Technical Specifications - Electrical Grade Alumina
Critical High-Voltage Applications
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SF6 Circuit Breakers: 126kV-550kV insulation components
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Gas Insulated Switchgear (GIS): Primary insulation for 126kV-1000kV systems
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High-Voltage Cable Accessories: Insulation and filling for cable joints
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Transformer Components: Mutual inductor GIS insulation
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Electrical Bushings & Insulators
Material Advantages for Electrical Systems
Enhanced Reliability
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Consistent dielectric properties across temperature variations
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Excellent compatibility with epoxy resin casting systems
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Minimal ionic contamination for long-term stability
Manufacturing Efficiency
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Predictable rheology for automated production processes
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Multiple grades tailored to specific potting system requirements
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Custom formulations available for specialized applications
Custom Electrical Solutions
We provide tailored alumina formulations to match your specific:
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Epoxy resin system compatibility requirements
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Voltage class specifications (126kV to 1000kV)
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Processing parameters and production workflows
Request Electrical-Grade Alumina Samples
Our technical team can help select the optimal ALF series grade for your high-voltage insulation application.
Contact us for technical datasheets and sample evaluation to verify performance in your specific electrical system.
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99.8% High Alumina Ceramic for Electrical Insulation | High-Voltage Switchgear & GIS Components Images
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