Perlite

  • 40 Mesh Microspheres Perlite For Heat Insulation

    40 Mesh Microspheres Perlite For Heat Insulation

    Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently. Perlite softens when it reaches temperatures of 850–900 °C (1,560–1,650 °F). Water trapped in the structure of the material vaporises and escapes, and this causes the expansion of the material to 7–16 times its original volume. The expanded material is a brilliant white, d...
  • Expanded Perlite Heat Insulation Materials Agricultural Perlite

    Expanded Perlite Heat Insulation Materials Agricultural Perlite

    Perlite are used to masonry construction, cement, and gypsum plasters and loose-fill insulation.

  • Hot sale perlite or agriculture perlite or Expanded perlite using in Garden

    Hot sale perlite or agriculture perlite or Expanded perlite using in Garden

    Expanded perlite is a kind of white granular material with honeycomb structure inside which is made of perlite ore after preheating and instant high temperature roasting and expanding. The principle is: perlite ore is crushed to form ore sand of a certain particle size, which is preheated and roasted and heated rapidly (above 1000 ℃). The water in the ore is vaporized and expands inside the softened vitreous ore to form a non-metallic mineral product with a porous structure and a volume expan...