Firefly Millboards are wet laid, clay bonded, inorganic mineral fibre boards. They are asbestos and ceramic fibre free for use in high temperature applications in all industries.
The range possesses high temperature capability, in excess of 1000°C, and low thermal conductivity. At a density of typically 1,000 kg/m3 they are rigid, strong, and can be supplied in sheet form, cut strips, or pressed to produce gaskets and seals. Firefly is used worldwide in iron & steel foundries, melt shops, metallurgical and pouring control systems, and feeding systems.