A Unique Material | Precision Ceramics

Macor Machinable Glass Ceramic is one of the most versatile and unique technical ceramics available and as you would expect from Corning’s principal, longest serving and highly-respected UK distributor, Precision Ceramics offers a complete, fast turnaround, research and development, design, prototyping and manufacturing service which is second to none! We’re also experts in Macor Machining and Metallization.

Precision Ceramics is part of the McGeoch Technology Worldwide Organisations and when McGeoch first introduced technical ceramics into their product range, they quickly became a principal UK distributor for Macor®, a unique machinable glass ceramic now manufactured exclusively in France by Corning Incorporated.

In this website, you can quickly access comprehensive information on everything about Macor – applications, composition, properties (chemical, electrical, mechanical and thermal), technical data, graphs, information and studies (DC Volume Resistivity, Dielectric Constant, Loss Tangent, Modulus of Rupture, Thermal Conductivity, Thermal Expansion and Young’s Modulus) and brazing.

By using this website, both potential and existing users will have quicker and more efficient access to technical information about Macor as well as being able to contact

Precision Ceramics online to discuss the best way forward for specific projects. Precision Ceramics is also a Total Quality Organisation and operates to the very highest quality standards. Macor is an outstanding engineering material and is machinable with ordinary metalworking tools.

Macor is also a problem solving material combining the performance of a technical ceramic with the versatility of a high performance plastic.

Macor has a high use temperature (800°C continuous; 1000°C peak)
Macor has a low thermal conductivity and is a useful high temperature insulator
Macor is an excellent electrical insulator and is used extensively throughout the semiconductor and electronic industries
Macor has no porosity and when properly baked, will not outgas. Macor is widely used in ultra high vacuum applications
Macor is strong and rigid. Macor unlike high temperature plastics will not creep or deform
Macor is radiation resistant and plays a key role in nuclear applications and nuclear-related research and development
Macor can be thick or thin film metallized, brazed, epoxy and frit bonded
Macor is white and can be highly polished. Macor is the perfect material for medical and optical devices