PROMAFOUR® construction boards

PROPERTIES & ADVANTAGES

  • Large-sized, self-supporting
  • High mechanical strength
  • Good thermal insulation
  • Good sound insulation properties
  • A1, non-combustible to DIN 4102
  • Ease to shape and work
  • Good chemical resistance
  • Hygroscopic and vapour-permeable
  • Unaffected by humidity
  • Retains shape stability and load capacity in humid conditions

Structural calcium silicates for stove insulation

PROMAFOUR® boards are cement bonded calcium silicate based insulation boards and are asbestos free. These large-sized multi-purpose boards are easy to handle and offer a superior combination of enhanced technical properties for building strong, mechanically self-supporting constructions.

PROMAFOUR® boards are hygroscopic and vapour permeable. Moisture content is therefore automatically regulated by the application environment. Water vapour absorption can slightly affect the strength and thermal performance characteristics of these materials

Technical data
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PROMAFOUR® 
Classification temperature °C 
800
Bulk density kg/m3
970
Shrinkage @400 °C – 24h full soak, % 
1.41
Thermal conductivity @20 °C mean, W/m.K 
0.20
Compressive strength (ASTM C 165), N/mm2
11


PROMAFOUR® 
Classification temperature °C 
800
Bulk density kg/m3
970
Shrinkage @400 °C – 24h full soak, % 
1.41
Thermal conductivity @20 °C mean, W/m.K 
0.20
Compressive strength (ASTM C 165), N/mm2
11
Product dimensions & size availability
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Length mm 
  2500 – 3000
Width mm  
  1250
Thickness mm       12, 15, 18 

Length mm 
  2500 – 3000
Width mm  
  1250
Thickness mm       12, 15, 18 

Production tolerances
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Length mm 
   ± 3.0
Width mm  
   ± 3.0
Thickness      6–12 mm         ± 0.5    
                      15–20 mm    ± 1.0
                      25 mm
   ± 1.5


 

 
Length mm 
   ± 3.0
Width mm  
   ± 3.0
Thickness      6–12 mm         ± 0.5    
                      15–20 mm    ± 1.0
                      25 mm
   ± 1.5


 

 
Working & processing
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Woodworking machinery with hard metal-tipped tools can be used for producing and shaping cut sections.
When shaping, the maximum allowable workplace concentration for inhalable dust generation must be observed.
Dust extraction is recommended.
Woodworking machinery with hard metal-tipped tools can be used for producing and shaping cut sections.
When shaping, the maximum allowable workplace concentration for inhalable dust generation must be observed.
Dust extraction is recommended.
Typical applications
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  • Chimney casings
  • Mantelpieces of fireplaces and stoves
  • Chimney casings
  • Mantelpieces of fireplaces and stoves