Perlite - more than just volcanic rock

Perlite is originally a glassy, volcanic rock with a density of 1100 kg / m³. The granulate expands volume up to 20 times its original volume when heated to a temperature of 850 ° to 900 ° C. Pore formation reaches a density of 35 kg / m³ up to 165 kg / m³. The expanded material is bright white afterwards.

Applications of Perlite

Perlite can be used in a variety of ways, including: as floor insulation in the construction industry. Perlite is non-flammable, environmentally friendly, chemically very stable, rot-proof and odourless. Perlite is a heat-insulating material that bonds easily and can be processed with mortar.

Characteristics of Perlite:
  • Density: 35-165 kg / m³
  • Lambda: 0.04 to 0.06 W / m. K
  • PH: 6.5-8
  • Solubility: insoluble in water and organic solvents
  • Fire behaviour: non-flammable - Fire class A1
  • Melting point: + 1260° C
  • Appearance: grainy / granular, white / grey-white
  • Volatile organic compounds: no
  • Asbestos: no
  Chemical composition (main elements)
  • Silicon                                    iO2            65-80%
  • Aluminium                          Al2O3           12-16%
  • Magnesium oxide                MgO            0.3-1.0%
  • Iron oxide                          Fe2O3           0.5-1.0%
  • Sodium oxide                      Na2O           3.0-4.5%
  • Calcium oxide                       CaO           0.5-2.0%
  • Water                                     H2O          2.0-4.0%
  • Loss on ignition                                             1,5-

Duofor bundelt de kracht met YBS Insulation

Per 1 september aanstaande bundelen wij onze krachten met YBS Insulation, Engelse fabrikant van reflecterende dak-, wand-, en vloerisolatie. Duofor zal het YBS importeursschap voor het Europese vaste land volledig overnemen. Zowel de producent Duofor als YBS Insulation staan voor service en doordachte, gecertificeerde oplossingen in de bouw. De perfecte basis voor een goede samenwerking, vinden wij.