1.Expanded perlite 
2.Size:4-8MM3-6MM2-4MM1-3MM 
3.Bulk density:80-120kgs/m3 
4.SiO2:68-74% 
5.Manufacturer

Perlite in the steel and Foundry Industries 
Perlite insulation is used in high temperature applications in the steel and foundry industries such as ladle topping, hot topping and risering, in topping compounds, in exothermic and insulating shapes, as a cushioning agent, in molding sand and in the manufacture of refractory blocks and bricks.

Raw perlite ore Size:

12-16 mesh, 14-20 mesh, 16-32 mesh, 20-40 mesh,
30-50 mesh, 50-70 mesh 70-90 mesh 90-150 mesh 200-325 mesh
0.1-1 mm 0.5-1.5 mm 0.06-2.5 mm 0.3-1 mm 1-3 mm2-4 mm,3-5 mm etc

Perlite Application
There are many uses for perlite. These uses can be broken down into three general categories: construction ap-plications, horticultural applications and industrial applications. it usually used in loose fill insulation, portland  cement and gypsum plasters, underfloor insulation, concrete roof decks,chimney linings,fireproofing,blocks,pipe insulation,improving soil aeration, drage ,making moisture and etc.

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