ACOUSTICAL CEILINGS & WALLS | Guinea-Bissau

Dune Max 2250M

Dune Max 2250M 600 x 600 x 18 MM

Dune Max produces a calculated reverberation time of 0.60 seconds for a typical (200m3) classroom. This is an optimum result as defined by the Department of Education (England and Wales). Dune Max is now fully recyclable. For details of the "Armstrong re-cycling programme" - please contact your local Armstrong sales office.


Item # 2250M

Visual Characteristics

Surface Dune Max
Edge detail
Board
Grid Face
24/35
Colour White
Dimensions 600 x 600 mm
Material Type Mineral
Recycled Content (%) 45%

Compatible Suspension Systems

Exposed 24mm Grid System Universal Main Runners 24
Exposed 35mm Grid System Main Runners 35


Technical Characteristics

Sound absorption (alpha w) 0.65
  View acoustic chart
Sound absorption European Classification C
Sound absorption (NRC) 0.60
Sound attenuation Dncw (dB) 35
Sound Reduction Index (Rw)
17
Rain noise test  
Light reflectance (%) 83.88
Humidity resistance (RH%) 99
Thermal conductivity (W/mK) 0.06
Weight (kg/m2) 4.55
Fire reaction
EEA Euroclass A2-s1,d0
Cleanable with a dry cloth Cleanability With a dry cloth

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