rock wool panel supplier

PU, PIR, and Rock Wool are currently common core materials for sandwich panels. Due to differences in density, thermal insulation performance, water absorption, fire resistance, applicable temperature, and price, their applications also differ.     A detailed comparison is as follows:   Performance Index PU Sandwich Panel PIR Sandwich Panel Rock wool Sandwich panel Thermal Conductivity W/(m·K) 0.022-0.024 0.020-0.022 0.040-0.043 Heat preservation effect High Highest Low Flame-retardant grade B2 B1 A Waterproof Better Better Normal Soundproof Good Good Best Applicable temperature -180℃~+120℃ -180℃~+150℃ -200℃~+700℃           Based on the above, we found that PIR sandwich panels offer the best thermal insulation, followed by PU sandwich panels, with rock wool sandwich panels performing the worst. However, rock wool sandwich panels have the best fire resistance and good sound absorption. Therefore, we recommend PIR sandwich panels for cold storage, PU Sandwich panels for general factories and high-temperature cold chain applications, and rock wool sandwich panels for theaters and large warehouses with high fire resistance and sound insulation requirements.