Knauf stone wool K2 120 kg / m³ (50 mm) - high density, solid and fire-resistant heating and sound insulation material. He has a long-term exploitation period and a long-term exploitation period. Thanks to 120 kg / m ³ Thanks to the density, it shows high resilience against mechanical cargo and is used in construction solutions that require high strength. The thickness of 50 mm is the perfect result in the insulation of wall, ceiling, flooring, roofing and industrial facilities. High heat resistance increases energy efficiency, and voice absorption creates a comfortable environment.