Stone Wool is called a fibrous insulating material that is used in construction as well as in technical applications. The stone wool is made of silicon-aluminum fibers and has thermal and sound-insulating properties. It is unburned and is produced by melting rocks at 1550-1600 ° C. With the help of special devices it takes the form of fibers with a diameter of 6-20 μm.
Materials with similar characteristics and properties are mineral wool glass wool and ceramic wool, except that glass wool is composed of glass fibers with a silicate composition and a lower production temperature, while ceramic wool is made up of ceramic fibers with a higher production and use temperature than both materials. All three of these materials are characterized by the general terms MMVF (Man made vitrous fibers) or the related term MMMF (Man made mineral materials).