Rock Wool


Rock wool is made by melting basalt rocks blended with coke & limestone & converted them into fibre. Rock wool adopted highly advanced technology to melt raw diabase rock at high temperature to make the flowing lava spin at high speed using the latest spinning system to produce hair fine fibers which are bound together by spraying with a thermosetting resin binder. The fibers are spread on a conveyor in collection chamber using air suction to achieve uniform distribution of density throughout the surface of the end products. Impregnation of special additives to the bonded products provides water repellence property to the end products.

Importance of Thermal Insulation

The need for efficient thermal insulation has become of paramount importance due to the increasing energy costs at high operating temperatures used in various processes & industries. Prevention of heat losses by judicious application of thermal insulation is the simplest method of achieving substantial economy in energy consumption. Thermal insulation is of course, equally relevant in Cryogenics (Cold) Applications. Rock wool products having complete thermal properties provides total solution for energy conservation.

The cost of fuels such as Petroleum, Power and Coke are increasing by the day. In the present industrial scenario, Heat saved is Money saved or Energy saved is energy produced. Conservation of Energy upto 20% can be achieved by proper insulation.

Benefits of Thermal Insulation

Rock wool products have been proven highly effective for thermal insulation, fire protection and sound proofing which can be used in commercial and industrial applications. The key benefits of rock wool insulation are:

    • Reduce heat losses and increase fuel savings.
    • Personnel protection from fire.
    • Creates comfortable working conditions for personnel.
    • Reduces sound levels.
    • Controls temperature drops.
    • Prevents condensation of ducts & pipes.


Rock wool product properties

    • Low Thermal Conductivity properties
    • High Temperature Resistance upto 750° Celsius.
  • Fire protective. Non-combustible.
  • Moisture resistance, water repellent.
  • Non capillary & Non hygroscopic
  • Excellent Sound Absorption.
  • Resistant to deformation.
  • Corrosion resistant. Asbestos free.
  • Prevents Thermal Shock

The Selection of Insulation Material

The final choice of a thermal insulation material is an engineering decision involving a number of factors, important among them are :-

  • The ambiance & operating temperature of the system.
  • Thermal conductivity of the insulation.
  • Desired surface temperature.
  • Resistance to heat & weather.
  • Resistance to adverse atmospheric conditions.
  • Ability to withstand vibration & noise.
  • Ability to withstand accidental mechanical damage.
  • Resistance to chemicals.
  • Resistance to and prevention of fire.
  • Total operational cost, including maintenance.