Regupol® 4515 Eco

General purpose acoustic underlay manufactured from a combination of cork granules and rubber crumb.

Suitable for use beneath hardwood, engineering board and laminate flooring.

General information

Uniclass 2015

Pr_25_57_06_71 Resilient layer insulationPrimary


K21/10 Wood laminate flooring

K21/111 Wood floating floor

K21/115 Wood laminate flooring

K21/145 Composite laminate flooring

K21/146 Laminate flooring

K21/20 Composite laminated flooring

Specification data - Resilient layer insulation

Product Reference

Regupol® 4515 Eco


3 mm

4.5 mm

Standard product features

Dimensions (t x w x l):

  • 3 mm x 1.15 m x 20 m.
  • 4.5 mm x 1.15 m x 12 m.


470 kg/m³.


  • Tensile strength (DIN 53571, 3 mm thick): 0.45 N/mm².
  • Elongation at break (DIN 53571): 18%.
  • Temperature resistance: -40–110ºC.
  • Thermal conductivity: 0.12 W/mK.

Impact sound insulation:

ΔLw (BS EN ISO 140-8:1998): 18 dB.

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