Top Electrical Properties for High-Voltage Use
Silica Powder for Insulation is a special product for high-voltage insulation. It is made from high-purity crystalline quartz. We use deep purification and fine grading. This gives the powder a very low dielectric constant and very high volume resistivity. Its dielectric constant is below 4.5. Its volume resistivity is above 1×10¹⁴ Ω·cm. These values meet the strict needs of high-voltage equipment, power cables, and electronic parts. Our product is a trusted choice for the electrical industry.
Strict Quality Control for Electrical Safety
Our quality standards for Silica Powder for Insulation are much higher than for regular products. We have added many iron removal and deionization steps in production. This lowers the conductive impurities in the product. Our lab has professional test equipment. We use conductivity meters, dielectric testers, and high resistance meters. Every batch of Silica Powder for Insulation goes through a full electrical performance test. This strict quality pursuit has earned us a good name in the electrical industry. Our products are widely used in high-voltage switches, transformers, and cable insulation.
Detailed Electrical Data
|
Parameter |
Typical Value / Range |
Test Standard |
|
Main Content (SiO₂) |
≥ 99.3% |
Chemical Analysis |
|
Dielectric Constant (1MHz) |
≤ 4.5 |
Dielectric Loss Tester |
|
Volume Resistivity |
≥ 1×10¹⁴ Ω·cm |
High Resistance Meter |
|
Particle Size (D50) |
5μm - 20μm (Customizable) |
Laser Diffraction |
|
Conductivity (Water Suspension) |
≤ 15 μS/cm |
Conductivity Meter |
|
Moisture Content |
≤ 0.15% |
Oven Drying Method |
|
Iron Content (Fe₂O₃) |
≤ 0.05% |
Spectrophotometry |
Key Applications and Custom Services
Silica Powder for Insulation serves the electrical insulation industry. In high-voltage equipment, it is a key filler for epoxy casting compounds. It raises the thermal stability and electrical strength of the insulation. In power cables, it improves the electric field distribution and heat dissipation. In electronic parts, it is used for potting and insulating high-voltage resistors and capacitors. We can customize the particle size for your process needs. The minimum order is 1 ton. Our team can give you formulation advice as well.
Hot Tags: silica powder for insulation, China silica powder for insulation manufacturers, suppliers, factory, 1250 Mesh Silica Powder, 2000 Mesh Silica Powder, 400 Mesh Silica Powder, 600 Mesh Silica Powder, 800 Mesh Silica Powder, ordinary silicon powder
