Tecsound SY50

£72.00 (Including VAT)
£60.00 (Excluding VAT) Price promise

1 - 10: £60.00
11 - 25: £58.20
26 - 50: £56.40
51+: £54.60

Tecsound SY50 is an ultra-thin, self adhesive and visco-elastic material for improving airborne attenuation and dampening vibrations

Tecsound SY 50 is a self-adhesive visco-eleastic membrane used to attenuate airborne noise in a wide array of applications such as; floor, wall and ceiling as well as applying directly to metal work to reduce structural vibration.

When soundproofing walls, floors and ceiling you will want to consider the use of a highly effective acoustic system to retain the best results for both airborne and impact noise. Seperation is a key factor when noise levels are excessive this is to reduce the points of contact with the structure. Mass is another key factor in which the increase of this helps to resist airborne noise. 

The best performing systems and products are when they are made up of different materials with different densities and with additional flexible properties to break down the soundwave as it passes through a partition - this is where Tecsound is an ideal addition to a system. Our MuteClip® System is a great place to start for soundproofing walls and ceilings.



If you are uncertain of what to look for when soundproofing a floor, wall or ceiling, you can read our handy guides -A Guide to Soundproofing a Floor, A Guide to Soundproofing a Wall or A Guide to Soundproofing a Ceiling by clicking on the icons below.


Guides to Soundproofing Floors, Walls and Ceilings



Tecsound SY 50 Information

  • 2.5mm x 6.05m x 1.22m (7.38m2)
  • Suitable for reducing both airborne and vibration on a large array of surfaces
  • Best used within MuteClip® System to dampen resonance between acoustic plasterboard and attenuate airborne noise
  • Surfaces will want to be as clean and dust free as possible for the self-adhesive to remain in contact
  • Very flexible and adaptable material


EAN number5060484200476
Weight36.9 kg
Length6005 mm
Width1220 mm
Height2.5 mm
Fire ratingB, s2, d0 (Equivalent to Class O)

Tecsound SY50 is a 2mm thick, visco-elastic membrane that is accompanied with a self-adhesive backing to make direct application easier without the need for mechanical fixing, tacking or additional adhesives. Visco (viscous, a thick and often sticky consistency) elastic (when stretched will often return to its original state) is a malleable, dense and easy to cut composite that sits between both it’s mechanical properties making it suitable for reducing vibration and airborne noise issues with the two elements combined help to dissipate energy, meaning that when sound or vibration comes into contact with it the sound energy is turned into heat - this dissipates the sound energy.

Yes it does, and at instant recognition when it is applied. The self-adhesive backing helps to make sure that the full material is always in even contact with surface - which is why we always opt for self-adhesive. Energy from the vibration, especially from metal structures, is absorbed in to the Tecsound SY50 and the resonance of sound is dampened - resulting in removal of a long delayed ring heard in metal structures. Tecsound is often used between acoustic plasterboard to provide additional sound proofing properties, the aim is to provide different densities and material composites to break down sound in a range of ways - sound moves differently through different mediums.

Tecsound SY50 is highly malleable because of its thickness, which makes it great for metal ducting - some information about the ducting would be good to make sure it is compatible in a specific environment, so damp environments, for example, could lead to the adhesive becoming compromised over time - we would use Tecsound here to dampen long vibrations, and would often not require a complete coverage to alleviate this, or in cases where the metal ducting if sound escapes from the duct itself we wrap around to reduce sound transmission.

Tecsound SY50’s temperature range is between -20°C to 60°C, anything above and below these could compromise performance with direct contact - it is best to create a form of boxing around these pipes if noise can be heard from them and apply Tecsound to the acoustic plasterboard boxing. Do discuss these options with a registered plumbing expert to be certain of it’s compatibility.

Tec sound SY50 can be applied to waste pipes to help sound proof against the noise of waste transferring through them, this can be highly uncomfortable when this noise is heard, you should aim to box in the waste pipe if possible.

As an alternative, our MuteWrap™ works exceptionally well also against sound proofing waste flues.

Bathrooms and wet rooms present high amounts of vapour and moisture, which over time can begin to degrade the adhesive qualities and elastic materials in the Tecsound SY50 - it is recommended that when using in an acoustic system, that Tecsound has at least a Vapour or Moisture board protecting it from either side, it is most common that Moisture Board is used internally in bathrooms to protect the sound proofing materials behind it, there should be no direct exposure to damp areas. Vapour Boards concern primarily external walls, so when damp is expected in these areas - you may wish to discuss to use of sound proofing materials with a damp specialist at this juncture.

When hung as an acoustic curtain it measures a 25.2dB reduction - what this means is if a sound measuring device was placed at one end with a sound played at another (usually in a controlled environment and to specific level of sound) it would reduce it by this amount. Decibel reductions cannot be added together, so when using Tecsound SY50 between acoustic plasterboards, applied directly to a wall or within one of our MuteClip™ Systems, these results will differ and is not always possible to determine what level of sound proofing the Tecsound will provide in these composites.