MuteMat® OSF 750-03 | Concrete Floor Soundproofing

As a concrete over screed, this is our thinnest system available for treating impact noise. It is straightforward to install, cost-effective and made of recycled rubber of up to 94%.

  • Impact: 19dB ΔLw
  • 3mm
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MuteMat OSF® 750-03 is our highly effective and ultra-slim resilient acoustic underlay for soundproofing concrete flooring against intrusive impact noises. Its high recycled content helps to reduce the carbon footprint while still retaining a consistent density, this assures that our material's acoustic performance and its longevity is upheld without fluctuation or fault.



  • Easy to install, roll out and tape joins (an adhesive may be required, please see below under installation)
  • System thickness from the existing floor 3mm

  • 19dB*(ΔLw) for impact reduction (details are available on the 'System Performance' tab above).
  • Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland) and Building Standards Technical Handbook 2017 for Scotland for impact transmission.


For optimum acoustic performance, installation with our MuteClip® System variations is recommended on adjoining ceilings to improve both impact and airborne noise.

In projects where you are specifying the use of an acoustic system, our team can help you from start to finish and with the use of our MuteMat® OSF 750-03 we can provide Acoustic Modelling Data to estimate results, and can provide fantastic rates on those projects so that you feel the right choice has been made. We also offer Acoustic Testing for existing structures as well as Part E Building Regulation testing and another specialised acoustic testing for projects that include Gyms and Nightclubs or even residence that require or seek increased acoustic performance for improved living quality.


MuteMat® OSF 750-03 is part of iKoustic's MuteRange core - these are products that been subjected to stringent testing in both laboratory and real-world environments providing the best possible solution for the purpose with a result you can trust.


You can find out more about our all-encompassing MuteRange by clicking on the icons below or get in contact with iKoustic today.



A Guide to Soundproofing a Floor

If you are uncertain of what to look for when soundproofing a floor, you can read our handy guide - A Guide to Soundproofing a Floor by clicking on the icon below. You can also pick up the phone and say hello to find out how we can help you on - 01937 588 226!



Making sure you are prepared

  • Depending on your floor finish, you may require additional adhesives which you can view below
  • If using after freshly poured concrete/screed, please allow the subfloor to cure before laying to avoid any complications with the installation.
  • Loss of space 3mm


How to Install

MuteMat® OSF 750-03 requires a Perimeter Flanking Band around the perimeter of the room to allow floor layers to adjoin to, helping to reduce the effect of Flanking, which can often be the cause of failures regarding Part E Building Regulations. You will also want to use a Blue Cloth Tape to tape the joins together.


Bonding to Substrate

  • F-Ball Styccobond F3 can be used to adhere MuteMat® OSF 750-03 to an absorbent substrate
    • if primer is required, the recommended primer for most substrates is F-Ball P131
  • If anhydrite screed has been laid, the laitance must be cleared before applying any primers or adhesives
    • The recommended primer for anhydrite screed is F-Ball P121
  • Smoothing compounds and latex screeds are usually designed to accept an adhesive applied directly

Wooden flooring finish

  • F-Ball Styccobond B95 can be used to bond timber floor finishes to MuteMat® OSF 750-03


Luxury Vinyl Tile

  • F-Ball Styccobond F46 can be used to bond vinyl floor finishes to MuteMat® OSF 750-03


Ceramic / Porcelain Tiles

  • MuteMat® OSF 750-03 to concrete/screed substrate, prime the substrate first with roller coat of ARDEX P82, allow to cure, then bond MuteMat® OSF 750-03 using either ARDEX S 28 or ARDEX X 7001 Mictrotec.
    • If bonding MuteMat® OSF 750-03 to a timber substrate, Ardex AF200 should be used.
  • When you come to lay the tiles, you should prime MuteMat® OSF 750-03 with ARDEX P82, then bed the tile into either ARDEX S28 or ARDEX X 7001 Microtec.
  • Flexi grout should be considered



Alternatively, we provide Acoustic Installation across the UK to fit all of our systems - they come with a wealth of experience in the field so you can feel comfortable that the right installation methods are being carried out. 


Contact us | 01937 588 226


*Our Typical Performance Results and Noise Reduction Guidance are provided to indicate the results that have been achieved in previous tests but are not guaranteed to a specific site as multiple factors can affect this.

*Our guide price includes all acoustic materials and ancillaries required

We endeavour to display the most up to date testing and to manage expectation as best as possible; please do contact us to discuss your requirements


Typical Performance Results*

ΔLw (impact Reduction)



Compliance with Part E Building Regulations and Scottish Building Regulations


  • When installed under the correct guidance this system is compliant with the required acoustic values for impact transmission featured in Part E Building Regulations; these are applicable across the UK, excluding Scotland (England, Wales, Northern Ireland) and the Republic of Ireland. We would advise conducting a Sound Test to survey any planned conversions in existing properties before concluding on an Acoustic System.
  • It is also compliant with the required acoustic values for impact transmission featured in the Building Standards Technical Handbook 2017 for Scotland, we would advise conducting a Sound Test to survey any planned conversions in existing properties prior to concluding on an Acoustic System. Scottish Building Regulations contain higher targets than that of Part E, and our Legal Requirements section has the required acoustic values.

  • For additional guidelines and requirements for non-residential buildings; for example, Gyms, Nightclubs and Industrial focused purposes, please do contact us so we can discuss your available options

MuteMat® OSF 750-03 - Product Data

MuteMat® Systems - Performance Data
MuteMat® OSF 750-03 | Concrete Floor Soundproofing

MuteMat® OSF 750-03 - Product Data

MuteMat® Systems - Performance Data
MuteMat® OSF 750-03 | Concrete Floor Soundproofing

Noisy neighbour scenarios often create tension and on the rare but not unheard of occasion, conflicts. It could be that the apartment above is badly soundproofed or not soundproofed at all and that even them going about their daily business causes stress and disruption to the neighbours below. When impact noise is the main concern, our MuteMat® OSF 750-03 offers a fantastic noise reduction for such a slim-line product, offering approximately 19dB reduction as a guide - an almost 75% reduction of impact noise issues - of course, this result is dependent on the overall thickness of the concrete substrate. Result here is taken from a 140mm concrete floor partition.

Again, with the concrete structure lending to the acoustic performance figures - our MuteMat® OSF 750-03 is currently tested with a 140mm concrete slab layer and is accompanied with a figure of a ΔLw 19dB - a reduction figure. If you are specifying in an existing build for conversion purposes we would recommend carrying out an acoustic test to survey the current acoustic performance of the slab. If you are looking at a new build construction and you have the structural details, we can put together a partition design of the estimated figures with your build, whether it’s block and beam, pre-cast concrete or cast in-situ, to look at suitability and what would be required to pass Part E Building Regulations.

It would often be accompanied with our MuteClip® Ceiling systems to assist with airborne reduction or any impact noise issues that are found in abundance or high, to reduce structural vibration being found at the ceiling level.

We would recommend the same process as above, the acoustic regulations for both conversions and new builds in Scotland are higher than that of England, Wales, Ireland and Northern Ireland. It would in the majority of cases involve the installation of a soundproof ceiling below such as our MuteClip® systems.

It is not likely our MuteMat® OSF 750-03 would suffice against industrial machinery, it’s compressible values may hold up but the vibration created with any heavy machinery generates a lot of low end frequencies that would often require something more robust. If an over screed is required try out MuteMat® OSF 750-10. Or if you are in the planning stages, you would do better to create a floating screed construction with our MuteMat® USP 600-17 acoustic under screed system.

MuteMat® OSF 750-03 as a soundproofing over screed will only look to reduce impact noise in a concrete structure, which is often useful in garage conversions where there maybe a worry from impact of a kick drum or vibrations from a bass amplifier bypassing the wall soundproofing in place. If the studio is located above another room, a ceiling soundproofing solution may also be required so that both impact from source and the remaining reduction of airborne noise is addressed.

You can find all of our current information on this acoustic over screed and it’s compatibility from the results below with use in conjunction with underfloor heating systems

Thermal Conductivity = 0.113 W/mK

Thermal Resistance = 0.028 m²K/W

Temperature Stability = -35°c to +100°c.

MuteMat® OSF 750-03 can be installed retrospectively to help address any acoustic issues with impact noise, one of the most common uses is with the introduction of a hardened flooring above that would often create heavy noise issues below. We specify a range of soundproof underlays to address these scenarios.

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