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SIDERISE NXR insulation boards are high performance firesafe and thermal insulation cores that offers exceptional structural performance, specifically designed for use in bonded composite panels.

NXR’s high strength rockfibre lamellae in a uniform vertical fibre structure ensure optimum mechanical performance meeting all performance criteria required of modern industrial/commercial buildings, curtain wall systems and volumetric building elements. Used wherever thermal, fire or acoustic insulation is required within a bonded composite panel, the insulation boards are available in different grades to suit performance specification. Faced both sides with a polymer filament net fabric to assist structural bonding, different facings/finishes are available to suit requirements.

  • Firesafe - tested to EN1364-3
  • High shear, compression & tensile strength
  • Suitable for flat and smooth bonded composite panels
  • Dimensionally stable
  • Permanently high insulating value
  • Excellent acoustic performance

General information

Firesafe insulation, Manufactured to bespoke specification




Supplied to specification

Uniclass 2015
Mineral wool fire stopping (Pr_25_80_81_51)Primary
Digital objects
PlatformCompatibleVersionCertified to
IFC2X3 2 1.3
Revit 2016 3 2.0
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