High Temperature Machinable Glass/Ceramic

MACOR MACHINABLE GLASS/CERAMIC can be easily machined into complex forms without hard tooling or intricate filing proceedures. Macor instantly transforms a standard machine shop to an "in house" Ceramics Fabrication Facility. With features like 1100°C operating tempature and 0° porosity Macor can be used for the toughest of applications. Specify Macor for economic, design flexibility that you control.

  • Machinable to 2 micron surface
  • Heat Insulation
  • Thermally Shock Resistant
  • Excellent Electrical Properties
  • Chemically Stable
  • Dimensionally Stable
  • High Vacuum Integrity
  • Thick or Thin Film Metallized


Density gm/cc 2.52
Porosity % 0
Knoop Hardness NA 250
Maximum Use Temp. (no load) F 1832
C 1000
Coefficient of thermal expansion In/in F 52x10-1
In/in C 94x10-1
Compressive Strength psi 50,000
Flexural Strength psi 13,600
Dielectric Strength (A.C.) Volts-mil 1,000
Volume resistivity ohm-cm >1014


Macor is used in many areas including heat-solder fixtures, shields, supports, plasma; machinery-valves, nozzles, bearings, spacers; electrical - insulators, CRT's, spacers, substrates, chemical, instrumentation, vacuum and more.

Distributed in bar, plate and rod shapes. Macor is also available in custom shapes from our own ceramic fabrication group. Send us a print and we'll gladly give you a quote.


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