For stretch-fit and double-stick applications.


Underlay suitable for stretch-fit and double-stick applications.

Features and benefits:

  • Polyurethane rebond.
  • End use classification (to BS 5808/ BS EN 14499): HC/U, 'Heavy Contract Use'.


For stretch-fit and double-stick applications.

General information

Uniclass 2015

Pr_35_57_11_11 Cellular plastics underlaysPrimary


M50/170 Carpeting

M50/25 Carpeting

Specification data - Cellular plastics underlays

Product Reference


Standard product features

Nominal density:

145 kg/m³.

Roll area:

15.07 m² (1.37 x 11 m).

Nominal roll weight:

15.1 kg.

Nominal thickness:

6.5 mm.


No objectionable odour.

Colour/ backing:

Orange polyethylene/ polyethylene with reinforcing scrim.

Impact sound reduction (Delta Lw):

35 dB.

Emissions (US Carpet and Rug Institute):

Meets low-VOC emission criteria.

Thermal resistance:

  • 1.85 togs.
  • Technical characteristics:
  • Work of compression (minimum 50 J/m²; maximum 200 J/m²): >140 J/m².
  • Retention of work of compression (minimum 40%): >90%.
  • Loss in thickness after dynamic loading (maximum 15%): <5%.
  • Loss in thickness after static loading (maximum 15%): <4%.
  • Breaking strength (length/ width): >90 N/ >50 N.
  • Extension under force (length/ width): <10%/ <10%.
  • Resistance to cracking (not greater than 50 mm): pass.
  • Antimicrobial and mildew resistance: pass.
  • R value: SI unit: 0.18; USA unit: 1.05.
  • Recyclability: at the end of the underlay's useful life, 100% can be recycled (MR 2.0: points available).
  • Recycled content: contains not less than 95% pre-consumer recycled material (MR 4.0: points available).
  • Indoor air quality: meets or exceeds the industry standard for indoor air quality, as established by the CRI Green Label Programme (IEQ 4.3: points available).


  • Hot metal nut test: pass.
  • Critical radiant flux: category 1.
  • IMO Surface flammability test (Part 5): pass.

Smoke and toxicity:

IMO Smoke and toxicity test – part 2: pass.

Third party certifications

  • Émissions dans l'air intérieur : A+ rating

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