Supalux is a -Class ‘O’ & A1- non-combustible calcium silicate fire protection board off-white in colour with a smooth sanded face and a lightly textured reverse face. Supalux can be used in a wide variety of building applications such as timber and steel frame, mezzanine floor installations, shaft-wall and doors. Supalux is a strong, lightweight capable of being cut and shaped accordingly. Provides up to 240 minutes fire protection.
Find a link to Promat Supalux here – https://www.promat.co.uk/en/products/supalux