Rock wool board Tech data of rock wool board ItemUnitIndexDensitykg/m360-200Fiber diameterum4-7Thermal conductivityW/(m.k)0.036-0.048Max service temp°C650Slag content%<12Hydrophobicity%>98Moisture rate%<5Reaction to fireNon-combustibility A1 Application of rock wool board: 1. Heat and acoustic insulation in building partition wall 2. Industrial insulation and sound absorption 3. Air conditioning system insulation