Regupol 4515 Multi Acoustic Underlay

Regupol acoustic flooring materials have been used successfully in such high-profile and diverse projects as The Shard, the Sterling-prize winning Everyman Theatre, the exclusive Four Seasons Hotel and the Royal Shakespeare Theatre, as well as Waitrose and Sainsbury’s supermarkets. To find out how Regupol will work for your project, call 01925 577711.

Regupol 4515 Acoustic UnderlayRegupol® 4515 Multi is a tough resilient acoustic underlay manufactured from PUR Foam and cork granules and is ideally suited to all new build type constructions to comply with Part E 2003 and can be bonded to all types of floors.

Regupol® 4515 Multi acoustic underlay is compatible with all types of floor finishes including ceramic tiles sheet vinyl and vinyl tiles wood and laminates carpet and marmoleum/linoleum.


  • Independently tested under laboratory controlled conditions and on-site using UKAS accredited. and ANC approved bodies respectively to show compliance with the new building regulations in accordance with Approved Document E 2003. When used in acoustic floors under Part E of the Building Regulations and Robust Details is accepted by the NHBC.
  • Highly sustainable and completely recyclable.
  • Offers long term performance without collapse or “bottoming” out under high point loads.
  • Resistant to ageing and deformation.
  • Quick and easy to install. Simply bond to the subfloor beneath the final floor finish.
  • Reduces construction heights.
  • Suitable for both new build and refurbishments.
  • High quality and exact material thickness guaranteed.
  • Suitable for use with under floor heating.
  • Very comfortable under foot.
  • Suitable for all floor finishes including ceramic/stone tiles.
  • Due to no rubber content Regupol® 4515 Multi acoustic underlay does not cause plasticizer migration when used with certain adhesives and floor finishes such as vinyl linoleum and light coloured carpets.
Regupol® 4515 Multi acoustic underlay is ideally suited to a wide range of floors and floor finishes.

With Regupol® 4515 Multi acoustic underlay laid on all floor types, all constructions pass the performance requirements as quoted in ADE 2003. We are happy to supply further information and independent test certificates on actual performance figures, please contact us direct.

*Diagrams for example purposes only

Regupol 4515 Acoustic Underlay for Concrete Slab FlooringRegupol 4515 Acoustic Underlay for Concrete Slab Flooring 2

Roll Width
Roll Length
3mm & 4.5mm
Non standard lengths available on request
Regupol® 4515 Multi acoustic underlay conforms to the following specifications:

Tensile strength
(DIN 53571)
Elongation at break (DIN 53571)
Thermal conductivity
Caloric conductivity
Building class
Thermal resistance (DIN 52612)
Approx. 0.9 N/mm2 (4.5mm material)
Approx. 25%
Approx. 0.12 W/mk
1/λ = 0.049 K/W
Impact sound insulation ΔLw (measured in accordance with BS EN 140-8:1998)
18dB Regupol® 4515 Multi acoustic underlay on its own
34dB Regupol® 4515 Multi acoustic underlay beneath carpet
22dB Regupol® 4515 Multi acoustic underlay beneath flotex
18dB Regupol® 4515 Multi acoustic underlay beneath marmoleum/linoleum
19dB: Regupol® 4515 Multi acoustic underlay beneath ceramic tiles
18dB: Regupol® 4515 Multi acoustic underlay beneath vinyl flooring
Up to 20dB: Regupol® 4515 Multi acoustic underlay beneath vinyl LVT
Please contact CMS Danskin Acoustics for independent test certificates relating to specific floor finishes.

Regupol 4515 Acoustic Underlay InstallationRegupol® 4515 Multi acoustic underlay can be used over a range of subfloors and with a variety of floor finishes applied such as:

  • Ceramic Tile
  • Wood & Laminate
  • PVC Flooring
  • Carpet
  • Marmoleum/Linoleum
  • Vinyl

Please refer to the correct PDF installation data sheet for your choice of floor covering. Just click on the ‘Downloads’ tab.

All diagrams are for example purposes only.

Regupol 4515 Acoustic Underlay Adhesive
CMS Bond 100 High Performance Acoustic Sealant for Use with Regupol® 4515 Multi Acoustic 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 technical data sheets, installation guidelines and case studies, please call 01925 577711. Thank you.