What is perlite? The mineral alternative

Perlite is a natural, non-flammable, non-toxic volcanic rock, which is created when liquid lava comes together with water when oxygen is not present. The original form of perlite sand is the natural glass obsidian. Though it is found worldwide, there are differences in its quality. Vital to good quality is the combined water of crystallisation, of which between 2 and 6% is combined in perlite sand. The higher this percentage is, the more the raw material expands when heated. As the water is released, countless small bubbles form in the liquid rock, these cause the volume to increase by between 10 and 20 times – a process creating a light sand with a well-defined capillary structure. For Klimasan-Perlit plaster we primarily use raw perlite from the Greek island of Milos. Containing 2 to 5% water of crystallisation, this perlite sand has the ability to expand enormously. In our special ovens, the raw perlite is expanded at over 1000°C. This expanded perlite is composed of 70% silicon dioxide and is therefore a natural glass (Si2O3). By evaporating the water, cavities (capillaries) are created, which allow the material to offer high quality insulation as well as regulating dampness and noise. This granulated perlite is proven to contain no toxic materials. It is frost resistant, odourless, has high capillary action and does not burn

In conclusion, Klimasan-Perlit is a natural insulation material with outstanding features:

  • A comfortable and healthy indoor climate
  • Natural drainage of damp walls
  • Extremely good insulation against heat and cold
  • Easy to apply
  • High load bearing capacity
  • Environmentally friendly
  • Pure mineral raw material
  • Sustainable as it is created from volcanic activity