SoundFirePan 17 fire-resistant heat and sound insulating composite sandwich core panel with endothermic effect on basalt and ceramic basis to produce fire-resistant constructions, exemplary for manufacturing of partition walls, doors and similar. For fire-resistant doors(EI30, EI60) with increased sound insulation up to 50 dB. The product has been developed and manufactured under the use of technologies patented by CBG Composites GmbH and has following properties: