Lightweight Silica Bricks
Silica lightweight insulation bricks with an SiO₂ content of ≥ 91 % are manufactured with a classified raw density in the range of 0,5 g/cm³ to 1,25 g/cm³ by the use of selected SiO₂ rich raw materials and pore formers and by using the so called dry pressing procedure. Silica light bricks are classifed in group 30 by ASTM standards.