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Fused Silica

An electrical circuit board

Product Overview

 

SILBOND® fused silica is an ultra-high purity quartz manufactured by an electric arcing process that takes place at around 2000°C. One of its most outstanding qualities is the extremely low thermal coefficient of expansion, 0.5 x 10-6/K. Furthermore, it has excellent thermal shock resistance, a high transformation temperature, a high softening temperature, low thermal conductivity, good optical light transmission, corrosion resistance and a diffusion-blocking effect against most substances. These properties make it an ideal material for use in electrical insulation, casting resin systems, electronics, precision casting and technical ceramics.

Various sizes and surface modifications can enhance the compatibility with the continuous media of the composite.

 

Brochures & Technical Literature

High Performance Fillers in Epoxy Resin for Use in Medium High Voltage Tech

SILBOND® FW 12 EST shows a very low electrical loss factor before and after immersion in water. Similarly, mechanical properties are also well maintained. This makes it ideal for use in medium-high voltage epoxy resin composites.

download Download PDF 239 KB

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Product Features
  • High purity electrically fused silica
  • The iron-free grinding process with subsequent air separation
  • Various particle size distributions and surface treatments available
  • Density of 2.2 g/cc
  • Low coefficient of thermal expansion: 0.5 x 10-6/K
Product Benefits
  • Improves dimensional stability over a range of temperatures
  • Prevents thermal shock
  • Excellent chemical resistance and barrier properties
  • Low thermal conductivity
  • High transformation temperature and softening point mean that it is stable in high-temperature applications
  • Low electrical loss factor even after submersion in water
Typical Applications
  • Electrical insulation
  • Casting resin systems
  • Electronics
  • Precision casting
  • Technical ceramics

Featured grades with technical datasheets

A brief overview of the key grades with their Technical Datasheets (TDS) is given below.

If you are looking for a Safety Datasheet (SDS), Product Safety Information (PSI) or an alternate grade, then please get in touch or request a sample.

Key points at a glance:

  • Electrically fused silica of high purity
  • Various particle size distributions and surface treatments available
  • Extremely low coefficient of thermal expansion: 0.5 x 10-6/K
  • Excellent chemical resistance and barrier properties
download SILBOND® FW Technical Datasheet 241 KB