Magnesium Silicate

Our Steatite grade of magnesium silicate material are volume manufactured for a wide range of components for a variety of market sectors.


Our magnesium silicate material is formed using standard ceramic processing methods and can readily be machined or net shape sintered into a variety of forms.

The material is lower in cost than alumina but offers reduced mechanical properties. However it has very good electrical resistance properties, which are retained at high temperatures, along with moderate mechanical strength and temperature resistance. It has been used in electrical insulation for many years in both large-scale electrical systems and electronic and domestic appliances.

Typical characteristics include:

  • Good to excellent electrical properties
  • High resistivity
  • Very low dielectric loss factor
  • Moderate strength
  • Low density

Typical applications include:

  • Regulator bases
  • Switches and plug parts
  • Sockets
  • Bases for halogen lamps
  • Heating Element Holders
  • Stand-Off Insulators
  • Washers and Bushings

 Steatite offers good electrical properties with high resistivity and a very low dielectric loss factor.

To speak to us about how our magnesium silicate material can be used for your products, contact us today.