PROMASPRAY®-F5T is a trowel applied, factory controlled premix based on vermiculite and Portland cement. It is used with potable water to be added on site. PROMASPRAY®-F5T will not fail suddenly after the prescribed fire resistance period but will continue to offer a predictable level of fire protection (insulation) for the duration of the fire. PROMASPRAY®-F5T is ideal for application by trowel in interior and fully exposed environments.