Applications: 

• All types of transmitting tubes for communications 
• X-ray tubes for x-ray equipment 
• Electro-optic devices

Properties: 

• Low dielectric loss over a wide range of frequencies
• Consistent dielectric constant
• High mechanical strength
• High density, vacuum tight
• Extremely good metallising strength

Applications: 

• Lasers for a wide range of industrial and medical applications. 

Properties: 

• Low dielectric loss
• Consistent dielectric constant
• High density, vacuum tight
• Good thermal conductivity
• Dimensional and electrical stability at all operating temperatures
• High chemical resistance

Applications: 

• Magnetic inductive flowmeters 
• Pressure sensors for gas and liquid flow measurement 

Properties: 

• High density, vacuum tight 
• Good corrosion resistance 
• Good wear resistance
• High flexural and compressive strength