The Perliwool mortar is a rock wool based product, intended for passive fire protection in structural and compartmentalisation elements. In addition, it has thermo-resistant and acoustic properties, and it is especially suitable for thermal insulation, absorption and soundproofing.
In relation to the structural elements, Perliwool can be used to protect steel structures (columns, beams, and hollow sections), concrete structures (walls, beams, columns, and slabs), composite sheet floor, flooring (one-way and two-way), and wooden structures. With regard to compartmentalisation, it can be used in masonry walls, vertical sheet divisions and firewall strips.
This mortar provides a fire resistance of up to 240 minutes (REI 240).
Perliwool is applied dry by means of a pneumatic spraying machine. To be able to make the application we will have to prepare the surface and put mesh in place if necessary.
To prepare the surface we must check that the support is dry and free of grease, dust and dirt; if the support does not offer sufficient adhesion it is recommended to put mesh in place. The use of mesh is also recommended when applying the mortar on wood, concrete (in some cases) and on beams with a width greater than 500mm. Afterwards, we will apply it on the surface in 10/15mm strokes until the necessary thickness is achieved.
The application temperature must be between 3 and 30 °C; and the substrate temperature during application must be at least 3 °C above the dew point.
The Perliwool mortar has a rough finish (it can be smoothed if necessary) and is greyish white or greenish grey in colour (it can be painted with compatible enamels).