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    Raw Perlite

    Raw Crushed Perlite Milled Unexpanded Perlite

    Perlite is a natural volcanic glass. There are many natural volcanic glasses around the world but the key feature for perlite is that when it is heated it expands. The expansive process is a lot like making pop corn.

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    name

    Perlite ore

    size

    1.18-1.7mm

    Application range

    Insulation materials, gardening materials, filter aids, insulation materials

    Rock structure

    Raw perlite

    colour

    green

    density

    1200-1300kg/m3

    Expansion factor

    15-20Times

    Moisture

    3%

    PH value

    6-8.5


    The Introduction

    Perlite is a natural volcanic glass. There are many natural volcanic glasses around the world but the key feature for perlite is that when it is heated it expands. The expansive process is a lot like making pop corn. The resultant expanded perlite can be 20-30x its original bulk density. The process of expansion targets the combined water content within the raw perlite - the water trapped in the perlite ore - which vaporizes under heat and creates a glass bubble.


    The Features

    It has light apparent density,low thermanal conductivity,fine chemical stability and wide use temperature range.

    It is non-toxic,flavorless,fireproof,acoustic etc.

    It is widely used in many fields.

    8-12 mesh,12-18mesh.18-20mesh,After expanding, it is widely used as the materials of keeping warm and heat insulation in the field of cnstruction.

    20-30mesh,30-50mesh,After expanded, it can be used as covering agent and deslagging agent in the industry of casting steel.

    50-70mesh,After expanding, it can be used as the filtering agent in the field of beer and medicine,and the insulation for cryogenic tanks of oxygen machine.


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