Expanded perlite

 

Expanded perlite is produced by heat treatment of raw perlite at a temperature of 700 - 900°C.

The expansion of raw perlite produces, without additional chemical treatment, a light porous, chemically neutral material, which is characterised by excellent thermal insulation properties, low bulk density of 60 - 140 kg/m3, high thermal resistance of 200 - 800 degrees Celsius.

These properties make expanded perlite one of the most progressive materials used not only in the construction industry.

Characteristics of use

Due to its low bulk density, thermal and acoustic insulation properties it is used in the construction industry as an additive for mortars, plasters and compacted and thermal insulating concretes, as well as for the production of thermal insulating shapes (bricks) - EP 100, EP 150, EP 180.

Thermal insulation properties of perlite are also used in direct backfilling of energy channels, cryogenic insulation of liquefied gas tanks, insulation backfilling in rehabilitation of older wooden buildings and double-skin masonry of buildings - EP 100, EP 150, EP 180.

It is suitable for the disposal of petroleum products in dry environments (garages, production halls) - EP 100.

It is also used in agriculture - especially in greenhouse farming, for levelling heavy soils and for rooting plants. It is added to various peat mixtures and other substrates for growing house and greenhouse plants. In forest nurseries, when establishing new planting, it significantly helps to improve the rooting quality of young trees - EP 200.

It is used for hydroponic cultivation in special plastic films as an alternative to the mineral wool used previously. The biggest advantages of perlite are its resistance to pests, moulds and fungi and its 100% recyclability - the contents of the plastic film, i.e. the perlite together with plant root residues can be used for direct incorporation into the soil after the growing season - this ensures the supply of natural fertiliser in the form of biological residues and, thanks to the perlite, the lightening and improvement of the water regime of the soil.

Products or type of expanded perlite

Expanded perlite
Grain size
Bulk density in kg/m3
EP 100
0,1 - 1,0 mm
65 - 85
EP 150
0,1 - 2,0 mm
100 - 120
EP 180
0,1 - 2,0 mm
80 - 110
EP 200
0,1 - 3,0 mm
120 - 140

Packaging and transport:

  • Bulk (silo)
  • Packed in paper bags (1 piece = 125 l = 0.125 m3)