What is Perlite?

Perlite is considered to be one of nature’s most efficient and versatile minerals. It is a type of glassy volcanic rock form that is made up of a unique chemical composition and crystalline water content. It is when perlite ore grains are abruptly exposed to immediate heat near to the sufficient temperature of their softening point (of 850° C) that the combined water rapidly vaporizes causing them to expand between 2-30 times their original volume.

This expansion process produces countless air voids within the grains, accounting for its lightweight, insulating and fireproof properties.

Uses of Perlite


  • Slag coagulant - Unexpanded Perlite


  • Lightweight construction
  • Heat insulation - Cryogenics
  • Fire proofing
  • Absoprtion of sound

Food - Used for filtering materials for production of

  • Soft drinks
  • Cooking oil

Pharmaceutical - Filteration of

  • Antibiotics


  • Treatement amelioration of soil
  • Control of liquid dung manure
  • Pesticides

Environmental protection

  • Gathering oil spills from the surface of water
  • Filtration of water in pools


  • Toothpaste
  • Deodrants

While it is obvious that Perlite offers a variety of uses for multiple purposes and sectors yet there are many more being discovered everyday.