Gyprock Fyrchek is a fire and acoustic grade plasterboard with a specially processed glass fibre-reinforced gypsum core for use in fire rated wall and ceiling systems and where improved acoustic performance is required. Fyrchek is available in in 13mm and 16mm thickness in 1200mm wide sheets. The long edges are recessed for flush jointing. Fyrchek is predominantly specified for commercial installations. Some typical applications include Fire separation and smoke walls, intertenancy walls and party walls, multi-residential unit ceilings, lift wells, plant rooms and any non-wet area wall or ceiling where a fire or acoustic rated system is specified.