Modern ceramic-based adhesives create connections that keep you safe even in extreme conditions. Specifically designed for the material pairings ceramic-ceramic and ceramic-graphite is high-tech glue Ceramabond 890, the Kager has recently included in its diversified portfolio Adhesive. This 1K silicon carbide adhesive can be chemically and mechanically stable, high-temperature compounds create.
The one-component system Ceramabond 890 (Aremco) is a silicon glue, which was tailor-made for the secure joining ceramic and graphite components in high-vacuum equipment. It is suitable for joining technology applications with operating temperatures of up to 1370 ° C. Typical applications are, for example, the production of gas igniters and resistance heating, the production of catalytic converters or heat-resistant threaded fasteners as well as the manufacture of vacuum components, strain gauges and temperature sensors. The one-component system is also suitable for mounting and electrical insulation of ceramic and graphite components as well as a protective coating. It is recommended also for the construction of high-temperature casings for furnaces and boilers.
The maximum thermal expansion of Ceramabond 890 for example, at 1370 ° C only 4,4 10-6 K and its dynamic viscosity is 49.000 mPas. Its density is the manufacturer with 2,18 g / cm3 where the torque strength lies with 14,24 Nm in the middle. The moisture, alkali and acid resistance of Ceramabond 890 is valid as well.
The application of gray matter throws in practice, no major problems. The thickness of the applied adhesive layer should not be less than 0,05 mm and not 0,2 mm in order to achieve an optimum result. After only one hour Ceramabond 890 is air dried, and the curing is usually completed after about 2 h. The shelf life is six months.