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Rock Wool Board Insulation and Thermal Mineral Wool Insulation Products. High Hydrophobicity: Water absorption rate below 0.5% with hydrophobicity exceeding 99%. Wide Thickness Range: Available thickness from 25mm to 150mm for various insulation needs. Long Service Life: Over 5 years warranty with stable performance in extreme temperatures. Eco-Friendly Material: Asbestos-free and contains no harmful CFCs, HFCs, or other toxic substances. Customizable Facing: Options include bare surface or aluminum foil facing for specific applications. Superior Sound Absorption: Porous fiber structure effectively reduces noise and provides acoustic control.