Stone Wool

Stone wool (rock wool) is made by melting volcanic rock such as basalt and converting them to fiber form. With the ability to operate at service temperatures up to 750oC, it is predominantly used in high temperature industrial applications.

LRB Mattress

High density, low binder based semi-flexible mat for high temperature applications

RB Slab

Rigid, strong and durable slab : plain or with factory applied facings

Pipe Section

Pre-formed product for easy installation on pipe : plain or with factory applied facing

Tuffinsul Slab

Slab with high compressive strength suitable for load bearing application

Tuffinsul Lamella Bat

Rigitd bat used as the core of fire rated sandwich panel

Building Roll

Long and flexible blanket : plain or with factory applied facings

Loose Wool

Loose stone wool fibers for in-fill applications in the industry.

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Why Choose
Stone Wool?


  • Minimizes heat loss
  • Reduces energy consumption
  • Lowers CO2 emissions

  • Maintains temperature stability
  • Ensures media stability
  • Preserves heat and cold

  • Reduces echo with high sound absorption , NRC upto 1.05
  • Low sound transmission
  • Protects human hearing

  • Non-combustible
  • No fire propagation
  • Does not emit toxic fumes and smoke

  • Biosoluble
  • Safe for use for applicators and users
  • EUCEB certified

  • Maximum service temperature, 750 oC
  • Stable thermal performance
  • Maintains dimensional stability

  • Low shot content
  • Minimal unfiberized content
  • Lower thermal conductivity values

  • Low Chloride content
  • Low Sulphur content
  • Low ash content in fuel

  • High compressive strength
  • Resistant to fiber settling

  • Mattress for curved surfaces
  • Slab for rigidity
  • Faster installation using pipe-sections

  • Offered In various forms i.e. mattress, slab and more
  • Customized lengths : reduces joints and wastage
  • Facing / wire mesh to suit requirement

  • Non-settling fibers
  • Chemically stable
  • Moisture resistance
  • No mold growth

Where can you use Stone Wool?

Stone wool is the most commonly used insulation for hot applications in the industry for high temperatures up to
750oC. These include boilers, pipes, storage tanks and more.

In certain areas of an industry, noise levels exceed the 85dB safe limit for human ear. With excellent acoustic properties, stone wool is also used in applications to provide sound isolation / absorption.

How Stone
Wool Works?

The tiny pockets of air trapped within the physical structure of the stone wool reduce airflow and heat flow. This makes stone wool a preferred choice for thermal and acoustic insulation, especially for industries.


How is Stone Wool Made

Stone wool, also known as rock wool, is manufactured by using volcanic rocks such as basalt and dolomite as raw material. The raw material is heated to very high temperature using fuel. The molten mixture thus obtained is passed through high speed spinners to form fibers. The fibers are then impregnated with thermosetting resin binder.

The fibers are then converted to various products such as LRB Mattress, RB Slab, Pipe section etc. of required density and thickness. Product can be customized to various dimensions and offered with facings as per the application.


Basalt and agglomerates are stored in silos, weighed and mixed with coke.


The mixture is melted at high temperature in a cupola


The fibres are produced by projecting the melt on rotors turning at high speed. A binder is automatically atomized on the fibers. The fibers are collected are forming an homogeneous primary mat of low gram weight. This mat is transported to the pendular installation.


The fibers are collected on a belt and folded using a pendulum. The fibers are passed through a crimping machine to bring mechanical properties to the final product.


The fibers mat, impregnated with binder, is entering into a curing oven to be stiffened. This gives to the mat its final thickness, density and consistency.


Once out of the oven, saws cut the blanket at the required width. The panels are then packed and palletized facilitating the logistics of handling, storage and loading in the transport units.