MuteMat® OSF 750-05 | Concrete Floor Soundproofing

A thin concrete over screed for treating impact noise. This is an upgrade from the 3mm option and is easy to install, cost-effective and made up recycled tires up to 94%.

  • Impact: 20dB ΔLw
  • 5mm
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MuteMat® OSF 750-05 is our most popular, 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 5mm

  • 20dB* (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.


At iKoustic our team can help you from start to finish, and with the use of our MuteMat® OSF 750-05, 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 750-05 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 5mm

How to Install

MuteMat® OSF 750-05 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 750-05 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 750-05


Luxury Vinyl Tile

  • F-Ball Styccobond F46 can be used to bond vinyl floor finishes to MuteMat® OSF 750-05


Ceramic / Porcelain Tiles

  • MuteMat® OSF 750-05 to concrete/screed substrate, prime the substrate first with roller coat of ARDEX P82, allow to cure, then bond MuteMat® OSF 750-05 using either ARDEX S 28 or ARDEX X 7001 Mictrotec.
    • If bonding MuteMat® OSF 750-05 to a timber substrate, Ardex AF200 should be used.
  • When you come to lay the tiles, you should prime MuteMat® OSF 750-05 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 does not include Peripherals and Perimeter Details.

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 before 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 750-05 - Product Data

MuteMat® Systems - Performance Data
MuteMat® OSF 750-05 | Concrete Floor Soundproofing

MuteMat® OSF 750-05 - Product Data

MuteMat® Systems - Performance Data
MuteMat® OSF 750-05 | Concrete Floor Soundproofing

Noisy neighbour situations can lead to tense living conditions for those subject to the noise, and it is often because of poor soundproofing or sometimes, no soundproofing that means that even just going about their daily lives above means that impact noise is heard through the ceiling - especially when there is a hard flooring installed above. So if your neighbours have agreed to lay an acoustic over screed, our MuteMat® OSF 750-05 comes with very little height loss and fantastic performance for impact noise. Its reduction figure is ΔLw 20dB on a 140mm concrete partition.

With tested acoustic figures as ΔLw 19dB reduction, on a 140mm concrete slab, results will differ depending on its flooring thickness. If you are looking to specify soundproofing over screed in an existing building for a conversion project - we would suggest carrying out an acoustic test of both airborne and impact noise to survey the current structure’s acoustic performance against the values of the Part E Building Regulations. In specification phase for new build plans, we can create partition designs with your proposed plans to review likely outcomes of acoustic performance in block and beam, pre-cast and cast in-situ concrete to find the best suited acoustic system alongside any other considerations.

It would often be accompanied with our MuteClip® soundproof ceiling systems to increase performance for airborne noise and any impact noise issues that are found to be high, and for reducing structural vibration being found at the ceiling level.

We would advise the same process as above, the regulations for both airborne and impact sound insulation values are higher across the board than those of the rest of the UK and Ireland. Most cases both conversion and new build would often require both floor and ceiling soundproofing to be installed.

It is not likely that MuteMat® OSF 750-05 would be suitable for the reduction of large machinery, especially that that require fixing in the concrete slab below and vibration would negate the acoustic over screeding - resulting in little to no overall reduction. With sitting lightweight vibration inducing apparatus and machinery on top, this will help to reduce vibration and any impact noise issues.

If you are still planning the structure, a floating concrete screed may be a better option with the use of our MuteMat® USP range, depending on the weights and level of control of structure-borne vibration.

For concrete foundation structures, MuteMat® OSF 750-05 would be a perfect addition to reduce vibration transfer and impact from instrumentation, or helping to isolate any subwoofers - each of these noise issues with direct contact may travel through the foundation and past any wall soundproofing you have in place. With rooms above others, a soundproof ceiling solution should be put in place to gain extra decoupling from the room above.

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 = 0.047 m²K/W

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

MuteMat® OSF 750-05 can be installed with great ease as a retrospective soundproof underlay, and it doesn’t require any structural work except for perhaps altering skirting boards and moving gripper rods. It is also a suited option for those looking to change final floor finishes to a hardened flooring or perhaps laminate, engineering wood, parquet and even ceramic tiling.

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