Regupol 3912 Acoustic Underlayment for Refurbishment

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3912 Underlayment for webRegupol® 3912 Acoustic Underlayment which is tough durable and designed to attenuate impact sound at source. It can be bonded to all types of base floors and is supplied in 6mm thick rolls.

Being manufactured from PUR foam Regupol® 3912 Acoustic Underlayment’s principle use is for the refurbishment market and is ideal for use beneath carpets hardwood floors battens T&G chipboard etc. It can also be used for new build but before making recommendations please contact CMS Danskin Acoustics Technical Support.
Benefits
  • Regupol® 3912 Acoustic Underlayment 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 6mm thick although other thicknesses are available upon request.
  • 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.
  • Primarily used for refurbishments although can be used for new build also.
  • High quality and exact material thickness guaranteed.
  • Suitable for use with under floor heating.
  • Very comfortable under foot.
Example 1:
18mm T&G chipboard laid over Regupol® 3912 Acoustic Underlayment adhered to 18mm T&G chipboard, directly fixed to timber joists, 8” x 2”, with 75mm mineral wood between joists and two layers of 12.5mm thick plasterboard fixed to resilient bar.

Acoustic Performance of Regupol® 3912 Acoustic Underlayment - Example 1
Airbourne sound Insulation Rw (C;Ctr)
54dB (measured in accordance with BS EN ISO 140-3:1995
Impact Sound Insulation (Lntw)
43dB (measured in accordance with BS EN ISO 140-6:1998
Regupol 3912 Acoustic Underlayment Installation 1Example 2:
18mm T&G chipboard laid over 19mm plasterboard plank, over Regupol® 3912 Acoustic Underlayment adhered to 18mm T&G chipboard, directly fixed to timber joists, 8” x 2” and two layers of 12.5mm thick plasterboard fixed to the joists.

Acoustic Performance of Regupol® 3912 Acoustic Underlayment - Example 2
Airbourne sound Insulation Rw (C;Ctr)
49dB (measured in accordance with BS EN ISO 140-3:1995
Impact Sound Insulation (Lntw)
55dB (measured in accordance with BS EN ISO 140-6:1998
Regupol 3912 Acoustic Underlayment Installation 2Example 3: Acoustic Batten System
Regupol® 3912 Acoustic Underlayment   is a very versatile product within the refurbishment market and can also be used with batten floor systems, an example of which is detailed across.

18mm T&G chipboard fixed to timber battens laid on Regupol® 3912 adhered to 18mm T&G chipboard.

  • Cut to suit a variety of different batten widths, giving greater flexibility when selecting the batten size.
  • Only 6mm thick, therefore minimises floor heights, which can often be the disadvantage in using standard “off the shelf” products.
  • Fix to the top or bottom of the battens.
Product Specification

Roll Width
Roll Lengths (standard)
Thickness
1m
15m
6mm
Non standard lengths available on request
Regupol 3912 conforms to the following specifications:

Colour
Density
Tensile strength
(DIN 53571)
Elongation at break
(DIN 53571)
Temperature resistance
Black
Approx.
370 kg/m3
Approx.
0.4 N/mm2
Approx. 45%
-40 to +110°
Caloric
conductivity
Building
class
Thermal resistance
(DIN 52612)
Impact sound insulation ΔLw
Approx. 0.12 W/mk
B2
1/λ = 0.049 K/W
23dB (measured in accordance with BS EN 140-8:1998)
Regupol 3912 Acoustic Underlayment Installation 31.Subfloor preparation is essential for the correct installation of Regupol® 3912 Acoustic Underlayment  . Subfloors must be sound, smooth, dry and free from any contaminants which could affect adhesion.

2.Please ensure each roll of Regupol® 3912 Acoustic Underlayment  is completely unrolled, turned over and left in the area to which it is to be applied for a minimum of 6 hours or ideally overnight prior to cutting and installing.

Laying Regupol® 3912 Acoustic Underlayment
1. Bond Regupol® 3912 Acoustic Underlayment to the base floor. The Regupol® 3912 Acoustic Underlayment  should be bonded to the subfloor using one of our  recommended adhesives – please contact CMS Danskin for a list.
Please ensure the adhesive guidelines are followed at all times.

2. Lay the Regupol® 3912 Acoustic Underlayment   into the adhesive and press from the centre outwards to exclude air and ensure overall contact with the adhesive.

3. Roll the Regupol® 3912 Acoustic Underlayment  with a 68kg flooring roller, from end to end and side to side to ensure overall contact.

4. Please leave a minimum gap of 3mm around the entire perimeter to allow for expansion and contraction. Do not butt the Regupol® 3912 Acoustic Underlayment  against the skirting boards and/or carpet grippers.

5. Use a craft knife and straight edge for cutting to size and please ensure that all edges are butt jointed.

6. After 30 minutes, when the floor has been completely covered, roll once again to ensure contact is maintained.

7. Please do not apply loads or move furniture on the Regupol® 3912 Acoustic Underlayment until the adhesive has fully set. Please refer to the adhesive manufacturer’s installation guidelines for curing times.

Important steps before you lay Regupol® 3912 Acoustic Underlayment
The recognized technical rules of the industry, and the code of practice requirements of BS8203 2001 “Installation of Resilient Floor Coverings” are to be observed.  Regupol® Acoustic Underlayments can be easily installed provided BS 8203:2001 and our installation guidelines are observed.

Please note that Regupol® 3912 Acoustic Underlayment consists of PUR foam and no rubber crumb. When comparing alternative products please be cautious where a ‘direct equivalent’ is offered. Many alternatives consist of a rubber compound which can cause plasticizer migration when used with certain floor finishes. CMS Danskin will not accept liability for products sold as a Regupol® 3912 equivalent.

Acoustic Underlayment Adhesive
CMS Bond 100 High Performance Acoustic Sealant for Use with Regupol® 3912 Acoustic Underlayment

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.
Guarantee
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.
Installation
Mixing:CMS Bond 100 is a ready to use versatile product and should not be diluted or adulterated in any way.
Application:
  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 and installation guidelines, please call 01925 577711. Thank you.