λ= 0.07 W/m∙K


Eco-friendly,thermal insulating plaster based on expanded perlite, for interior and exterior use.

It conforms to European Standard ΕΝ998-1 specifications.



  • Stable standardized properties
  • Fast and easy application
  • Elimination of thermal bricks
  • Thermal & Sound insulation
  • Fire Resistance
  • Cost efficient
  • High Adherence
  • Sufficient strength 

Product Identity   

  • Color: Grey cement-based on perlite   
  • Weight/Packaging: 25 lt bag   
  • Storage: 9 months in the original packaging and in a dry place   
  • Particle size: 0-2.5mm  

Application Data    

  • Mixing Ratio: 25L in 6-8L water    
  • Pot life: 1 hour at 23 oC and 50% RH    
  • Thickness: 25-30mm/coat    
  • Consumption: 25 L/m² for 20-25 mm thickness    
  • Application temperature: +5 ºC - +35 ºC  

Final Performance   

  • Adhesion strength: 0.1 Ν/mm2– FP:A   
  • Compressive strength: CSI   
  • Water absorption: W1   
  • Thermal conductivity (λ10,dry): class T1- λ≤0.1 W/m∙K                                                         
  • The application is similar to conventional plasters so normal plastering techniques can be employed.   
  • After you place the guides apply Thermosovas to the desire thickness (25-30mm), by a plaster spraying machine or by hand using a float. Greater thicknesses can be achieved by applying more than one layer, after the first layer is almost dry.   
  • The surface should be lightly dampened, for 2–3 days, beginning 24 hours after application, especially in hot weather, with intense evaporation.  

Substrates Preparation    

  • The substrate must be solid, free of dust, loose parts and oils.   
  • To avoid immediate absorption of mix water by the substrate and for better adhesion saturate the surface to provide a saturated surface dry condition.  


Preparing the mix   

  • Pour the material into clean water and mix mix in a concrete machine until a homogeneous mix is obtained. Attention! Additional water will make your mixture sloppy and may cause negative results on final strength.    
  • Mixing time should not exceed 5 minutes because it might cause adverse effect on its mechanical properties.    
  • Use the mixture when is still fresh. Do not leave the mix unmixed for a long time.    
  • Do not mix with water or latex additive when the mixture starts to set in the bucket. In such case the mix should be dropped.  

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