ZirKlear™

Range
Expendables
Subtitle

Zircon material

Description

ZirKlear™ ensures low blistering behavior and enhanced lifetime.

Chemical and physical properties

Typical chemical composition

 
 

Typical crystallographic analysis

Main phase: 

  • zircon

Physical characteristics

Description International standards British standards
Cold crushing strength 70MPa 10,153psi
Coefficient of thermal expansion 5.5 10-6K-1 3.1 10-6°F-1
Thermal conductivity at 1,000°C 3 W.m-1.K-1 20.8 BTU in hr-1ft-2°F-1
Thermal shock resistance good good
Porosity 17% 17%
Typical bulk density 3.69g/cm3 231pcf

Typical application

  • danner tubing mandrels.
  • spouts, spout inserts, orifice rings in soda-lime and opal glass furnace.

The specifically-selected raw materials in the ZirKlear™ patented composition ensure a lower blistering index compared to CZ66.

The low-blistering zircon is made of zirconium silicate grains produced by SEFPRO, which provide a high resistance to vapor attack and borosilicate glass corrosion.

ZirKlear™ provides enhanced lifetime versus CZ66, with a drastically reduced blistering behavior, allowing applications for flint and amber pharmaceutical glass for Danner tubing mandrels or expendables.

Related products

Sintered
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ARKAL 60 PR V

Sintered mullite 68% alumina

Good glass contact properties and thermal shock resistance. Low iron oxide content. Available in complex and large shapes.

Expendables

ZIRAL GC

Bonded AZS with 20% zirconia

ZIRAL GC is recommended for glass contact application in feeder expendables where high corrosion resistance is required.

Sintered
Expendables

CZ66

Sintered zircon with 66% zirconia

Premium zirconium silicate. Very high resistance to vapours corrosion and very good glass contact properties for specialty glass expendables.