Basalt wool

Basalt( stone) cotton wool is a heater made from basalt, which belongs to the hardest materials, it can contain separate varieties of minerals from the basalt group. The size of superfine fibers is 1-3 microns, the size of fine fibers varies from 5 to 15 microns. The average length of the fibers is 50 mm. These fibers are located chaotically, giving the material excellent thermal insulation characteristics. The photo and video clearly show the structure of the material.

Scope of application

The scope of basalt wool is very wide. You have to understand that this is a kind of mineral wool. It is participation in the group of mineral heaters that makes it possible to use this material in the following cases:

• insulation of ceilings, walls, floors, the given cotton wool is laid inside the walls, under the screed, under the plaster, and topped;
• insulation of pipelines;
• arrangement of sound insulation;
• the formation of fire protection, because this material only melts at a very high temperature.

Kinds of

There are several varieties of basalt stone wool, each has its own area of ​​application.

1. Soft. It can be used in the event that large loads are not expected. For example, for the arrangement of ventilated facades or for the insulation of frame houses. Such a variety consists of very fine fibers that perfectly hold heat.
2. Medium stiffness. Applied in ventilated facades and in the case of insulation of ventilation units and channels.
3. Tough. It can be used where strong mechanical loads are expected. For example, where the insulation is made for subsequent reinforcement and plaster. This applies to both walls and floors, if a screed is applied over the wadding.
4. Special heaters for pipes in the form of a cylinder.
5. Foiled material. Used for increased thermal insulation. After all, such cotton wool not only retains heat, but also reflects it inside the room.

This insulation varies in thickness. The maximum thickness is 100 mm. Of course, the thickness affects the thermal insulation characteristics. The thicker the layer, the warmer it will be in the room. However, according to reviews, it is inconvenient to work with thick varieties, so it is better to lay in several layers. For convenience, basalt wool is produced in several forms:

• in rolls;
• in the plates;
• in a shapeless condition( for pneumatic equipment).

Material properties

Among the main properties of basalt cotton wool are the following:

• excellent sound insulation and thermal insulation;
• fire safety;
• high strength;
• vapor permeability( as opposed to foam, which prevents the walls from "breathing");
• durability;
• does not rot.

Technical characteristics of basalt wool

Strength of the material is due to good ability to resist loads. This quality is associated with a high density of cotton wool - 30 - 100 kg / m³.Such density indicators give rigidity, allowing the material to be exploited for about 50 years. Fibers do not retain moisture, so the material always remains dry,it does not accumulate moisture, accordingly its weight does not increase upon contact with water and does not cause damage. The hygroscopicity of the material is low - no more than 1%.The thermal conductivity of the material is 0,042-0,048 W / m * K.

The material has a porous structure, which makes it possible to absorb air, impact noise. This characteristic makes basalt cotton wool an excellent means of providing noise protection. It is advisable to use material to protect structures from potential fire damage. It does not light up at all, it begins to melt at temperatures above 1000 ° C.

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