Fyrchek MR glass fibre-reinforced core enables it to maintain structural integrity when subjected to direct flame. The additional moisture resistant properties make it an ideal board for use as part of a fire rated wall or ceiling system in wet areas or application subjected to high humidity. This plasterboard is also an acoustic grade board and can be used in systems where acoustic separation is specified. Gyprock Fyrchek MR can be easily identified by its blue coloured face paper.