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Minrock rockwool slabs consist of long fine fibres spun from molten natural rock and bonded with a thermosetting resin. Minrock slabs have the best combination of Thermal Insulation, Sound attenuation and fire protection properties.
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Minrock slabs are used for both hot and cold Insulation to conserve energy. Lower density materials are used for building application like underdeck Insulation, wall Insulation and sound proofing of partitions and over false-ceilings, airconditioning duct Insulation & chimney Insulation. Higher density materials are used for high temperature applications like furnaces, ovens, autoclaves, kilns, etc.


    Standard size and Packing

   Size of Slabs

   1000 mm X 500 mm


   25, 40, 50, 65, 75, 100 mm

   Density (Kg/Cu.m)

   48, 64, 96, 144

   *Slabs also available in size
      4' X 21/2 (1220 mm x 760 mm

  Polythene bonded hessian


    Compression resistance

Minrock slabs are highly resilient and easily regain their nominal thickness after the removal of normal compressive load.

    Moisture Resistance

Minrock slabs are moisture resistant. Should the slabs become wet, full thermal efficiency will be restored after drying out the moisture.

    Corrosion Resistance

Minrock slabs will not cause, initiate or promote corrosion.

    Fire Resistance

Minrock slabs are incombustible and resist the spread of flame. They can withstand fire exposure temperatures and hence can be used for fire proofing.


    Maximum Service Temperature

750 Deg/Cel

    Sound Absorption

Minrock slabs provide excellent acoustical absorption and noise reduction co-efficient. Due to high noise reduction co-efficient, they are used in acoustic Insulation work for auditoria, theatres, public places and industrial areas where noise reduction is required.

    Thermal Conductivity

Thermal conductivity varies with the temperature and density of Insulation as shown in fig.


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