SiO2 content of the integrity of the origin of Xinyang City Pingqiao District perlite manufacturing and processing plants ≥ 98 (%) 
 Density of 0.07-0.1 (g/cm3) Hardness 3-5.5 

 ● expanded perlite 

 1 ★ Products 

 ◎ expanded perlite perlite ore through warm-up, made after the expansion of the transient high-temperature calcination of an internal honeycomb structure of white granular materials. Principle: perlite ore by crushing the ore of the formation of a certain size, Preheat roasting rapid heating (1000 ° C and above), the ore in water vaporization in the softening of the glassy-containing ore internal expansion, the formation of porous structure, the volume expansion of 10-30 times the non-metallic mineral products. perlite in accordance with its expansion technology and for different purposes is divided into three types: open hole (open cell), obturator (closed cell), the hollow hole (balloon). 

 Main characteristics of the 2 ★ 

 ◎ light ◎ the porous ◎ insulation ◎ noncombustible 

 ◎ sound-absorbing ◎ toxic ◎ ◎ water-resistant anti-corrosion 

 The application of the principle of the 3 ★ 

 ◎ porous nature of perlite, perlite of this feature, conducive to the roots of the crop into the perlite matrix internal nourishment the perlite porosity can be saved a lot of water, nutrients, a long time the supply of the crop-growing need, in used directly in a large number of agricultural crops are grown on surface, can also be used in breeding flowers and flower pots. transformation of soil, regulate soil compaction, to prevent crop lodging, control fertilizer and fertility played a due role in agricultural production, the use of perlite porous adsorption, can be used as a diluent and carrier of pesticides and herbicides in agriculture. 



 - The product information provided by the integrity of the company perlite manufacturing department. 
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