One of the types of finishing materials used for both internal and external works is perlite plaster. It is used for leveling surfaces and for decorative decoration of walls and ceilings. This coating protects the room from loud sounds and cold penetration, is resistant to moisture and perfectly lays on any surface.
Advantages of perlite plaster
- it is completely natural material;
- the thermal conductivity of perlite plaster is so low that its layer of 5 centimeters protects the house in the same way as a 15-centimeter brickwork;
- it has high fireproof properties, is not afraid of moisture and temperature drop;
- this plaster is plastic and convenient in applying to any surface;
- it protects the walls from the appearance of fungus and mold ;
- its porous structure makes it lightweight and reduces the overall consumption of the material;
- This coating is very durable and protects the house against the penetration of rodents and insects.
Composition and properties of plaster
What can explain such properties of this material? The secret is in the characteristics of the substances from which it is composed. With the composition of perlite plaster necessarily includes specially processed volcanic sand - perlite. It is exposed to a very high temperature, and it foams, forming air bubbles. This also gives perlitic plaster such lightness and heat-insulating properties.
In addition to perlite, the mixture includes sand and various polymer additives. The basis can be gypsum or cement. The range of application of such a mixture is very wide. Perlite gypsum plaster is most often used for interior walls. It is light and vapor-permeable, which creates a special microclimate in the room. A cement-perlite plaster is designed primarily for outdoor work, as it is more resistant to weathering.