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Call us on 0208 123 9710 | Email us at info@soundstop.co.uk
Call us on 0208 123 9710 | Email us at info@soundstop.co.uk

Tecsound 70SY Self-Adhesive Membrane

£74.95
Original price £74.95 - Original price £74.95
Original price
£74.95
£74.95 - £74.95
Current price £74.95


  • Great for walls and floors

  • Market leading performance

  • 5.0m x 1.20m Highly dense flexible soundproofing layer

A very high performance acoustic membrane that improves both impact and airborne passage of sound.

Tecsound 70SY stands out as an exceptionally high-performance self-adhesive acoustic membrane primarily designed for soundproofing floors. Its superior mass, compared to Tecsound 50SY, positions it as the preferred choice for floor soundproofing applications.

This flexible mass loaded vinyl enhances both impact and airborne sound transmission. It serves as a high-density polymer-based synthetic soundproofing membrane, offering exceptional acoustic insulation for various construction components. Additionally, the product possesses fire-resistant properties and is self-extinguishing.

Product Application

Tecsound 70SY mass loaded vinyl is suitable for application on walls and floors. For ceilings, we suggest using Tecsound SY50 self-adhesive. This product is effective in constructing high-performance walls and is commonly employed in conjunction with acoustic mineral wool, acoustic plasterboards, and resilient bars.

When used on the floor, it can be seamlessly paired with our SBx board collection and mineral wool to establish a superior airborne and impact sound barrier, safeguarding against noise from lower levels. Enhancing the robustness of performance, we recommend doubling up Tecsound 70 on floors to achieve a density of 14kg/m2.

On the ceilings we recommend the use of the self adhesive Tecsound 50SY to make application more straight forward.

Do you have a Under Floor Heating System?

It is essential to verify the compatibility of soundproofing products with your specific system, as their performance may vary. The Tecsound Acoustic Membrane, with a thermal conductivity figure of 0.45 W/mK, requires confirmation of its suitability for use with your particular Under Floor Heating system before proceeding.

Tecsound Performance

Tecsound 70SY delivers truly remarkable performance, equivalent to that of lead with the same surface weight. In a single layer, Tecsound 70SY achieves an impressive Rw figure of over 28db.

Due to its unique chemical composition, Tecsound exhibits exceptional damping qualities, a feature often lacking in rigid plasterboard constructions. This resilience positions Tecsound favorably compared to products like green glue, offering not only great resilience but also substantial mass.

The mass-loaded vinyl membrane includes a reinforcing scrim on one side; when applying it to the floor or wall, ensure that the scrim side faces you for optimal results.

Other Tecsound Applications

In addition to its applications in soundproofing walls and floors, Tecsound 50 serves various other purposes.

When applied to lightweight vibrating and resonating surfaces like car doors, floor pans, and bonnets, it significantly diminishes vibration and sound transmission through these surfaces. Additionally, it reduces re-radiated sound, making it an ideal solution for soundproofing engine bays in boats and other noisy engine rooms.

This mass-loaded vinyl proves highly effective beneath metal decks and roofs, effectively dampening the sound of rain.

In the industrial machinery sector, Tecsound 50 has demonstrated success in minimising sound emitted from machine rooms and noisy equipment. Its extensive use in creating soundproof booths has made it a valuable asset in the music industry.

Here are the main details for this product:

Dimensions: 5.0m x 1.22m (+/- 2%)

Thickness: 3.5mm

Pack Size: 1 Roll

Weight: 7kg/m2

Density: NA

Coverage: 6.0 sqm

Fire rating: EN 13501-1 - B

Thermal Conductivity: 0.45 W/mK

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Please contact our team if you have any questions on this product.

Walls, Floors and Ceilings

Tecsound is utilised in a number of our wall, floor and ceiling solutions, head over to the relevant type to find out more:

Wall Solutions

Floor Solutions

Ceiling Solutions

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Check out our Soundproofing Guides for more information, advice and tips on all aspects of soundproofing.