The integrity of the origin of Xinyang City Pingqiao District perlite manufacturing and processing plants SiO2 content ≥ see (%) 
 Density of 0.18-0.26 (g/cm3) Hardness 3-5.5 

 ● Unicellular Pearlite 



 1 ★ Products 

 ◎ Obturator perlite (also known as glass perlite), the product selection of special size requirements of ore in the furnace heating mode expansion, through the precise control of temperature and material endurance, so that the product surface melting, stomata closed The internal cellular structure, the appearance of micro-ball compared with the conventional porous perlite retains the insulation, insulation, soundproof characteristics, but also has high strength, low water absorption, easy and good characteristics. 

 Main characteristics of the 2 ★ 

 ◎ The product has high strength, low water absorption and dispersion. 

 The application of the principle of the 3 ★ 

 ◎ lightweight aggregate use 

 ◎ can replace part of the floating bead 

 ◎ high temperature, lightweight refractory bricks and other industries use 

 4 ★ performance indicators 

 Technical performance 
 Indicator parameters 

 Size (mm) 
 0.1-1.5 

 Bulk density (Kg/m3) 
 100-200 

 Thermal conductivity (w / mk) 
 0.035-0.047 

 Into a ball rate 
 70-90% 

 Obturator rate 
 ≥ 95% 

 Water absorption ① 
 50-85 

 Cylinder compressive strength of ② 
 38% -46% 

 Refractoriness 
 1280-1360 ℃ 

 Use temperature 
 Below 800 ℃. 

 ① Water absorption: the vacuum filtration method for the determination of% 

 ② cylinder compressive strength: 1Mpa pressure volume loss rate 




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