Skip to content

NOVA Acoustics

Nationwide Delivery
High Performance
Great Value
Expert Advice
thumb 500 600 0 0 crop 8 1

Tecsound SY 50

Performance: 25.2dB*

Dimensions: 6.05m x 1.22m x 2.5mm

Weight: 36.9kg

For: Homes, workplaces, industrial developments, and specialist audio environments.

Compliance: Compliant with both Part E Building Regulations (England, Wales, Northern Ireland and the Republic of Ireland).*

Installation: Please see our installation tab below.

Where Multi-use application on walls, floors and ceilings. Used as a standalone for the damping of vibration in metal structures and use in many of our acoustic systems.

Vibration Control and Damping Products. Tecsounds Visco Elastic Membrane can be used to mitigate vibration in panels and metal frames or it can be used to provide airborne and impact sound insulation between spaces.

Tecsound is a flexible, easy to handle and high performing acoustic membrane for all your soundproofing needs. it is a feature in many of our acoustic systems and is suited for timber and concrete structures with particular focus on the 'muting' of vibration in metal structures. Learn more below.

More Information

Noise pollution is one of the leading problems in the modern world today. It has a profound and detrimental effect on both your health and wellbeing, it is even more critical now to seek a solution that will give you a tranquil space that you can live in peacefully, and work in without distraction.

Tecsound SY50 is a visco-elastic membrane, and this means it is both a viscous material, part way between a solid and a liquid, having elastic properties, meaning that it returns to its original form when stress is within its limits, like pulling an elastic band, if you pull it too hard it will break.

Tecsounds sweet spot for damping or ‘muting’ vibration does not often go into these ‘stresses’ in the majority of projects that need control over vibration.


  • 6.05m x 1.22m x 2.5mm (7.38m2).
  • A visco-elastic membrane for damping vibration.
  • High mass for resisting airborne noise.
  • Self-adhesive application to a wide range of surfaces.
  • Easy to cut to size

For soundproofing, these are both effective for the damping of vibration, and because of its high mass, will reduce airborne noise too. To achieve the best possible solution on soundproofing projects, you will need to incorporate them into ‘Systems’, and it is here you will find Tecsound in a range of options. Each offers ways of increasing acoustic performance, for example, by fitting them alongside acoustic cradles to create a fully floating floor, by adding them to joist structures alongside sound insulation for a vast improvement for airborne and impact noise or use in concrete buildings as a standalone for impact reduction.

Tecsound SY50 is a single ply material, one that is used between plasterboards in our acoustic systems or used to be directly applied to metalwork to dampen vibration. Our acoustic test data and performance is based on an acoustic curtain, where Tecsound separates two rooms and then measures its performance. When factored into a ‘System’ this will change as you cannot add dB levels together, you can learn more on our ‘Science of Soundproofing’ page.

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 both elements combined, they help to dissipate energy, meaning that when sound or vibration comes into contact with it, the sound energy turns into heat – this reduces the sound energy.
Yes, it does, and you will recognise this instantly when you apply it. The self-adhesive backing helps to make sure that the material is in full exposure, and is always in even contact with the surface, this is why we always opt for self-adhesive. Energy from the vibration, especially from metal structures, is absorbed into the Tecsound SY50 and the resonance of sound is dampened, resulting in the removal of a long-delayed ring heard in metal structures. Tecsound is often used between acoustic plasterboard to provide additional sound proofing properties, and the aim is to provide different physical properties, densities and material composites to break down sound in a range of ways, sound moves differently through various mediums.
Tecsound SY50 is highly malleable because of its thickness, which makes it great for metal ducting, we will need some information about the ducting would be good to make sure it is compatible in a specific environment. For example, humid environments could lead to the adhesive becoming compromised over time – we would use Tecsound here to dampen the extended vibrations, and would often not require a complete coverage to alleviate this, In cases where sound escapes the metal ducting we wrap Tecsound around to reduce the 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. You will want to discuss these options with a registered plumbing expert to be sure of its compatibility.

Tec sound SY70 can be used to soundproof waste flues, where often waste can be heard travelling down or across them which can be a highly uncomfortable situation when noises associated with these are heard, you should aim to box in the waste pipe if possible to improve results.

As an alternative, our MuteWrap™ works exceptionally well 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. We recommend that when using Tecsound in an acoustic system, that it 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 preserve the sound proofing materials behind it, there should be no direct exposure to damp areas. Vapour Boards concern primarily external walls, so areas where you expect – you may wish to discuss to use of sound proofing materials with a damp specialist.
When hung as an acoustic curtain it measures a 25.2dB reduction – what this means is if a sound measuring device is placed at one end with a sound played at another (usually in a controlled environment and to a specific level of sound) it would reduce it by this amount. You cannot add decibels 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.

Installation Guide

Tecsound SY50 is a self-adhesive material, and when Tecsound arrives, you will find two sheets attached as you roll it out. One of them is a polypropylene fleece that helps increase the tear strength of the Tecsound, do not tear this off, the other is the removable protective covering to expose the adhesive, this is easy to peel off compared to the protective fleece. If you are unsure, peel a little off the corner to reveal the adhesive side.

You will want to install Tecsound over the joins of acoustic plasterboard and not meet them up to create an airtight system, the lesser joins, the better. With this in mind, when cutting Tecsound you will want to keep them as generous as possible without being challenging to manage, it is easy to cut with a new Stanley blade, and you will want to have at least two people during the installation.


Product Data

Sound insulation advice for Part E

Soundproofing Floors
Soundproofing Floors
Soundproofing Designs for Party Floors to achieve compliance with Part E of the Building Regulations.
Soundproofing Walls

Soundproofing Walls

Soundproofing Designs for Party Walls to achieve compliance with Part E of the Building Regulations.

Who we work with