Modern ceramic-based adhesives create connections that hold securely even under extreme operating conditions. The high-tech adhesive Ceramabond 890, which Kager recently added to its wide range of adhesives, is specially designed for the material pairings ceramic-ceramic and ceramic-graphite. This 1K silicon carbide adhesive can be used to create chemically and mechanically resilient high-temperature connections.

The one-component system Ceramabond 890 (Aremco) is a silicon carbide adhesive that is used for the secure connection of ceramic and graphite components in High vacuum -Facilities has been tailor-made. It is suitable for joining applications with operating temperatures of up to 1370 ° C. Typical areas of application are, for example, the production of gas igniters and resistance heaters, the production of catalytic converters or thermally resistant thread closures as well as the production of vacuum components, strain gauges or temperature sensors. The one-component system is also suitable for the assembly and electrical insulation of ceramic and graphite components and as a protective coating. It is also recommended for the construction of high-temperature housings for ovens and boilers.

The maximum thermal expansion of Ceramabond 890 at 1370 ° C, for example, is only 4,4 10^-6 K and its dynamic viscosity is 49.000 mPas. Its density gives the manufacturer with 2,18 g / cm³ Torque resistance is in the middle range with 14,24 Nm. The moisture, alkali and acid resistance of Ceramabond 890 is considered good.

The application of the gray matter does not pose any major problems in practice. The thickness of the applied adhesive layer should not be below 0,05 mm and not over 0,2 mm in order to achieve an optimal result. After one hour, Ceramabond 890 is air-dried; The curing is usually completed after about 2 h. Shelf life is six months.