Spherical silica "SILIFIL™"

SILFIL™ is a spherical silica produced by the dry process, featuring highly uniform particle sizes in the range of 50–150 nm. With no coarse particles and a sharp particle size distribution, it contributes widely to the electronics materials field thanks to these characteristics.

Product overview

Generic names Spherical silica
Product name SILIFIL™
Chemical formula SiO2
Packing /
shipping method
Flexible containers, aluminum bag
General applications
  • Encapsulants for semiconductors
  • Die bonding materials
  • LED Encapsulants
  • Adhesives
  • Films
  • Quartz, ceramics, etc.
  • Toner

Special characteristics

  • High Purity: Extremely low levels of impurities such as radioactive elements, heavy metals, and ionic species.
  • High Insulation: Excellent electrical insulation due to minimal conductive impurities.
  • Superior Sphericity: Precisely formed, spherical silica particles.
  • Sharp Particle Size Distribution: No coarse particles and a narrow size distribution.
  • Low Thermal Expansion: Amorphous and non-porous structure provides a very low coefficient of thermal expansion.
silfil