Protection against Fire
The extruded polystyrene (XPS) used for the Ultralight core as insulation is an HBCD-free flame retardant component and contains none of the foam blowing agents CFC and HCFC. According to Specification STM-S-001, Index D (2014), Ultralight possesses a very low smoke gas index and has been classified as F1, a material of low toxicity. The I.F. smoke gases index measures the maximum specific optical density (Dm), the smoke obscuration value (VOF4) and the toxicity index (I.T.C.). The test establishes requirements related to the smoke and potential toxicity of practically all flammable materials on a railway vehicle.
The XPS core and excellent physical-mechanical properties of plywood panels from Garnica mean that Ultralight possesses outstanding levels of thermal and acoustic insulation. Ultralight has been accredited by the most demanding acoustic tests, such as the UNE-EN ISO 10140-2:2011 standards. It has been laboratory tested to measure acoustic insulation and accredit its use in construction. Please contact your local sales rep to see the tests.
By providing greater mechanical inertia to the assembly owing to perfect industrial adhesion capacity, this combination of layers in the form of a sandwich panel also creates a stiffness in the Ultralight panels that is genuinely surprising when considering their lightweight nature and easy machinability. Determination of screw pull-out resistance from fibreboards is performed under UNE EN 320:1993 standards.