Applications

Glass Industry

SIGRADUR® glassy carbon is an ideal material for components in the glass industry. SIGRADUR® glassy carbon is highly temperature resistant in inert gas or vacuum up to 3000°C. Unlike all other ceramic and metallic high-temperature materials, glassy carbon increase in strength with a rise in temperature up to 2426°C. It also exhibits double its room temperature strength at 2426°C. SIGRADUR® glassy carbon has an extremely high resistance to thermal shock. Therefore, short heating and cooling times are possible without issue. SIGRADUR® glassy carbon also shows no wetting by molten glass. Due to its hard and smooth surface, SIGRADUR® glassy carbon does not exhibit any particle generation like other carbon materials, which would cause contamination. Additional advantages include its smooth surface, low thermal conductivity, and low thermal expansion.