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Produkte von Dämmstofffabrik Klein

Isoperl 5

The ecological and physical alternative

Isoperl® - 5 is a grained, heat and sound insulating levelling bulk on a  Perlite -basis for levelling masses under mastic asphalt and wet screed.
 Perlit Körnung Isoperl 5

Protects against heat / cold / noise and fire

  • Approval Z-23.11-1243
  • Not self-bearing dry fillings for interiors in new and old buildings
    Thermal insulation for floors and ceilings
    Step noise dampening under floating screeds  

Pour-level-ready

  • Does not attack other materials, especially metal
  • Height levelling without cutting and waste

Natural advantages

  • Anorganic, because it is a mineral
  • Does not rot or shrink
  • Safe against pests
  • Chemically neutral
  • Healthy construction

Isoperl® -2  and Isoperl® -5 are frequently used as substrates for liquids, as for white products such as milk powder products and urea, and are also approved for organic and ecological feeds.
Isoperl® is also used in formulas in which you want to achieve a good anti-caking effect (no clumps) with small quantities of additives.  Due to the structure of Isoperl® it is easy to link and is therefore used as a filler in rubber processing (toothbrushes with rubber ribs with Isoperl®), abrasion coats, abrasion pastes (toothpaste for professional teeth cleaning) and in the paper industry etc.

Technical data

Building class A1: non-flammable according to  DIN 4102
Thermal conductivity value: λ = 0,050 W/(m•K) according to DIN 52612-1 or DIN EN 12667
Granulation: 0-6 mm
Bulk weight (approx.) 82 kg /m³ ± 15 %  according to DIN 4226-3
Compressive stress ≥40 kPa  in accordance with DIN EN 826


These statements are based on the current state of our knowledge. They do not constitute a guarantee of the properties of the described product within the meaning of statutory warranty regulations.

Form of delivery

100 litre sack, paper or PE, Big Bag