FireFX supplies the Protecta FR Board consists of a high-density rock wool board which is coated with fire retardant coating on both sides.
The 50 mm thick rock wool is to keep the temperature increase down, whereas the fire retardant paint is designed to prevent fire and hot gases from leaking through the mineral wool board. Currently,
this is the most common fire sealing method as it is a quick way of sealing big and/or complicated fire seals when the fitter has some experience with the system.
The FireFX batt board has been tested on all types of service-penetrations in all types of constructions and may also be combined with Protecta Cable Transit, Collar and Pipe Wrap. It is also ideal for closing over all types of ceilings against concrete floors and walls.