Regupol 4515 Eco Soundproof Underlay

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Regupol 4515 Eco Soundproof UnderlayRegupol® 4515 Eco soundproof underlay is a general purpose acoustic underlayment manufactured from a combination of cork granules and rubber granulate. Designed to attenuate impact sound at source on all types of subfloor. A tough resilient low cost underlayment Regupol® 4515 Eco soundproof underlay can insulate beneath all types of wooden based floor finishes such as laminate hardwood and engineered board. For new builds refurbishments and bespoke architectural projects including residential commercial and education settings.


  • Regupol® 4515 Eco soundproof underlay been independently tested by a UKAS accredited laboratory to show compliance with the new building regulations in accordance with Approved Document E 2003.
  • Standard thickness 3mm & 4.5mm.
  • Offers long term performance without collapse or “bottoming” out under highpoint loads.
  • Resistant to ageing and deformation.
  • Quick and easy to install. Simply bond to the subfloor beneath the final floor finish.
  • Reduces construction heights.
  • High quality and exact material thickness guaranteed.
  • Suitable for use with under floor heating.
  • Very comfortable under foot.
  • Zero GWP (Global Warming Potential) and Zero ODP (Ozone Depletion Potential).

Regupol® 4515 Eco soundproof underlay  has a sound insulation performance of  Lw 18dB.

It is compatible with many types of floor finishes and give s the following acoustic performances when combined with:

Floor Finish
Impact Sound Performance
Regupol® 4515 Eco soundproof underlay beneath Ceramic tiles
Regupol® 4515 Eco soundproof underlay beneath Vinyl
Regupol® 4515 Eco soundproof underlay beneath laminate
Regupol® 4515 Eco soundproof underlay beneath flotex
Regupol® 4515 Eco soundproof underlay beneath carpet
Regupol® 4515 Eco soundproof underlay beneath marmoleum
Measured in accordance with BS EN ISO 140-8:1998
Technical Information

(DIN 53571)
Elongation at break
(DIN 53571)
Temperature resistance
Thermal conductivity
Impact sound
insulation ΔLw
Approx 470kg/m3
Approx 0.6N/mm2*
-40 to + 110oC
*(3mm thick) ** (measured in accordance with BS EN ISO 140-8:1998)
Please contact CMS Danskin Acoustics for independent test certificates relating to specific floor finishes.
Physical Information

Roll Width
Roll Lengths
Material thickness
Material construction
20m (3mm) & 12m (4.5mm)
3mm & 4.5mm
Soundproof Underlay Adhesive
CMS Bond 100 High Performance Acoustic Sealant for Use with Regupol® 4515 Eco Soundproof Underlay

CMS Bond 100 is a solvent free low VOC high performance water
based acrylic dispersion with very good bond strength. It is suitable for plasticized vinyl floor coverings (including PVC tiles) together with high density foam backed carpets.
CMS Bond 100 is distributed in the UK by CMS Danskin Acoustics. The adhesive manufacturer will guarantee the performance and quality of products against manufacturing defects provided they are used in accordance with our relevant Technical Data Sheets at the time of installation and the appropriate sub floor preparation has been undertaken in accordance with the relevant British Standards.
Floor covering manufacturers are constantly introducing new backings and improving their current products. Certain backings may have unique characteristics which may influence the choice of adhesive used. Whilst every effort has been made to ensure the information is correct at the time of publication it is the responsibility of the user to ensure that the product is suitable for the particular installation.
If there is any doubt as to the use of our adhesives the installer should contact CMS Danskin Acoustics for advice or carry out their own tests to ensure compatibility.
Important steps before you lay CMS Bond 100 – Surface Preparation
  1. Suitable sub-flooring substrates include concrete, flooring grade hardboard, plywood, chipboard, sand/cement screed, proprietary good quality self-smoothing underlayments. Asphalt and surface membranes should be treated with at least a 3mm coating of the latter before applying the adhesive.
  2. Site conditions should comply with the latest British Standards editions: BS 8102 (Code of Practice for protection against moisture from the ground), BS 8203 (Code of Practice for installation of resilient floor coverings), BS 5325 (Code of Practice for installation of textile floor coverings), BS 8204 part 1 (Code of Practice for installation of self levelling screeding compounds), and supplementary specifications.
  3. Surfaces must be level, firm and clean, free of loose material, mould, oil, grease, organic growth and surface moisture (under 75% RH).
  4. Uneven, dusty or friable surfaces should be treated with the appropriate universal primer and screed.*
  5. It is essential that suitable damp proof membranes be in place to prevent rising damp.*
  6. Under floor heating should be turned off for at least 48 hours prior to and after application.
  7. Particular attention must be paid to the floor covering manufacturer’s instructions. i.e. any pre storage conditions prior to fitting.
*Please contact CMS Danskin for further information.
Mixing:CMS Bond 100 is a ready to use versatile product and should not be diluted or adulterated in any way.
  1. Use a notched trowel of dimensions 1.5mm x 5mm or as CFA guidelines.
  2. Heavy textured floor coverings may require a larger towel.
  3. Apply adhesive evenly to the substrate and depending on the substrates lay the floor covering while still wet. It is best to allow the freshly applied adhesive to stand for 15-45 minutes depending on the ambient conditions, to build tack before embedding the floor covering.
  4. Press firmly into place and rill using a 60/70Kg roller or glider depending on material used. Roll again approximately 1 hour after application.
  5. Wait at least 24 hours before welding vinyl seams.
Removal of adhesive from tools:
Clean tools with water if adhesive is still wet or use white spirits if it has dried.
Product Specification
ColourOff White
ConsistencyTrowelable Mastic
Open Time15 minutes plus depending on site conditions: Temp, humid & surfaces to be treated
Specific Gravity1.2
Shelf Life12 months if stored between 5-30°C in a dry area, in original unopened containers.
Protect from frost.
Product Technical Information
CuringHigh humidity, a low temperature and poor ventilation will retard the drying speed
Coverage3m2/kg depending on the porosity of the substrate and thickness of the adhesive film.

For the latest relevant case studies, please call 01925 577711. Thank you.

For the latest technical data sheets and installation guidelines, please call 01925 577711. Thank you.