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Talk to our Experts: 0208 123 9710 | info@soundstop.co.uk
Talk to our Experts: 0208 123 9710 | info@soundstop.co.uk

Tecsound 70 Non-Adhesive Membrane

Original price £64.95
Original price £64.95 - Original price £64.95
Original price £64.95
Current price £58.45
£58.45 - £58.45
Current price £58.45


  • 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 70 Non-Adhesive Membrane is a highly effective, flexible acoustic barrier that offers superior soundproofing for walls and floors. With a density of 7kg per square metre, Tecsound 70 combines high mass with viscoelastic properties, making it ideal for reducing both airborne and impact noise. This membrane is particularly popular for floor applications due to its extra density compared to Tecsound 50, offering even greater noise reduction. Fire-resistant and self-extinguishing, Tecsound 70 provides top-level soundproofing performance across residential, commercial, and industrial environments without compromising safety or taking up excess space.

What is the Tecsound Acoustic Membrane?

Tecsound is a state-of-the-art, viscoelastic soundproofing membrane engineered to deliver advanced noise and vibration control. Made from a high-density, polymer-based synthetic material, Tecsound offers an effective alternative to traditional rigid soundproofing materials like plasterboard, which can transmit vibrations and amplify noise. Tecsound’s unique composition enables it to combine mass with flexibility, blocking noise effectively while absorbing vibrations. Tecsound 70, in particular, is formulated for applications where high mass is needed, such as floors in multi-story buildings, creating an ideal barrier against both airborne and impact noise.

How Does Tecsound 70 Non-Adhesive Membrane Work?

Tecsound 70 achieves its remarkable soundproofing abilities by adding significant mass to surfaces, which effectively blocks airborne sound and reduces sound resonance. Its viscoelastic properties absorb and dampen vibrations, preventing sound from resonating through rigid materials. This dampening effect, absent in many rigid soundproofing materials, allows Tecsound to control sound energy more effectively. When used with additional layers, like acoustic mineral wool or plasterboard, Tecsound 70 creates a mass-spring effect, which is especially effective at reducing sound transmission across a range of frequencies and enhances overall noise control in demanding environments.

What Type of Noise does Tecsound 70 Non-Adhesive Membrane Stop?

Tecsound 70 is designed to tackle both airborne noise—such as voices, music, and environmental sounds—and impact noise, including footsteps, furniture movement, and structural vibrations. Its high-density construction not only blocks sound but also provides exceptional vibration dampening properties, particularly beneficial for areas with metal or other rigid materials that can amplify sound. This versatility makes Tecsound 70 an excellent solution for soundproofing in settings where different types of noise need to be managed effectively, including residential floors, industrial applications, and more.

Where can the Tecsound 70 Non-Adhesive Membrane be Used?

Tecsound 70 is highly versatile and can be applied to walls and floors in a wide range of settings. It’s especially valuable in applications where impact noise reduction is essential, such as floors in residential, commercial, and industrial buildings. Tecsound 70 works well as part of a layered soundproofing system, in combination with acoustic mineral wool, resilient bars, and plasterboard, creating a high-performance barrier that controls both noise and vibration. Additionally, it’s suitable for unique applications like soundproofing in studios, machinery rooms, and vehicles, where noise reduction and vibration control are crucial.

How to Install the Tecsound 70 Non-Adhesive Membrane

  1. Prepare the Surface: Make sure the surface is smooth, clean, and free of any dust, debris, or imperfections to ensure strong adhesion.
  2. Apply the Membrane: For floor installations, place Tecsound 70 with the reinforcing scrim side facing up. For walls, ensure the scrim side faces outward, allowing the membrane to bond effectively to the surface.
  3. Seal and Secure: Overlap the edges of each Tecsound sheet slightly and use high-quality acoustic tape to seal the seams, creating a continuous soundproof barrier. For added soundproofing, install a finish layer, such as plasterboard or an additional flooring material, directly on top of the Tecsound membrane to further enhance performance.

What are the Benefits of the Tecsound 70 Non-Adhesive Membrane?

  • Superior Noise Reduction: Blocks airborne and impact noise with a high-density layer, making it suitable for demanding soundproofing projects.
  • Exceptional Vibration Dampening: Absorbs and dissipates sound energy, preventing sound from resonating through surfaces.
  • High Mass for Effective Soundproofing: With a density of 7kg per square metre, Tecsound 70 provides heavyweight soundproofing without requiring excessive thickness.
  • Flexible and Durable: Conforms easily to different surfaces, allowing for straightforward installation across a range of applications.
  • Fire Resistant and Safe: Tecsound 70 is made from non-toxic, fire-resistant materials, making it safe for use in both residential and commercial environments.

What thickness of Tecsound should I choose for my project?

Choosing the right Tecsound thickness depends on the level of soundproofing required and the type of noise you’re trying to block. For most residential and commercial applications, Tecsound 50 (5kg per square metre) provides solid sound insulation for walls, floors, and ceilings, effectively reducing moderate airborne noise. Tecsound 70 (7kg per square metre) is better suited for floors or environments where enhanced impact noise reduction is needed. For spaces requiring maximum noise control, such as studios or industrial areas, Tecsound 100 (10kg per square metre) offers the highest density and is ideal for high-performance soundproofing applications. If in doubt, consult a professional to determine the best thickness based on your project’s unique requirements.

Can Tecsound be cut to fit custom sizes and shapes?

Yes, Tecsound is designed to be easily cut to fit custom sizes and shapes, making it highly adaptable for various applications. Its flexible composition allows you to trim it with a utility knife or heavy-duty scissors to fit around outlets, pipes, vents, or other irregular spaces, ensuring full coverage even in areas with unique dimensions. This customisability makes Tecsound a practical choice for projects requiring precise soundproofing, such as in cars, machinery enclosures, or areas with intricate layouts. By cutting Tecsound to fit seamlessly, you can create a continuous soundproofing barrier without leaving gaps where sound could escape.

Using an Under Floor Heating System?

Tecsound 70 has a thermal conductivity rating of 0.45 W/mK. To ensure the best results and system compatibility, check with the manufacturer of your underfloor heating system before installing Tecsound 70, as some systems may have specific requirements for use with soundproofing materials.

Upgrade Your Soundproofing System with Tecsound

For maximum soundproofing performance, Tecsound 70 can be layered with other materials such as Tecsound 50 or acoustic mineral wool. This combination enhances density and creates a multi-layered soundproofing system that effectively controls both airborne and impact noise. Tecsound 70 also integrates seamlessly with resilient bars and plasterboards, providing a compact, high-performance solution for reducing noise in spaces where soundproofing is essential. Whether used in residential spaces, studios, or industrial applications, Tecsound 70 is a powerful component for achieving comprehensive noise control.

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

How to Install Tecsound 70 Acoustic Membrane

Tecsound 70 is a high-performance acoustic membrane designed to reduce airborne noise transmission through walls, ceilings, and floors. With its higher mass compared to Tecsound 50, it offers enhanced soundproofing, making it ideal for home cinemas, music studios, home gyms, offices, and noisy environments.

Unlike self-adhesive versions, Tecsound 70 requires a separate adhesive for installation, allowing for flexibility in application. Follow this step-by-step guide to ensure a professional-quality installation.

What You Will Need

  • Tecsound 70 Acoustic Membrane
  • Measuring tape
  • Stanley knife or utility blade
  • Straight edge or metal ruler
  • Tecsound-compatible adhesive (such as GenieMat Glue or a suitable contact adhesive)
  • Trowel or roller for applying adhesive
  • Hand roller for pressing the membrane into place
  • Gloves (recommended for handling)

Step-by-Step Installation Instructions

Step 1: Prepare the Surface

Before installing Tecsound 70, ensure the surface is:

  • Clean – Remove dust, dirt, grease, or loose particles.
  • Dry – Damp surfaces can affect adhesion, so make sure everything is fully dry.
  • Smooth and stable – Fill any cracks or uneven surfaces for the best results.

Tecsound 70 can be applied to plasterboard, masonry, timber, MDF, and concrete surfaces, making it a versatile solution for soundproofing projects.

Step 2: Measure and Cut the Membrane

  1. Measure the area where Tecsound 70 will be applied.
  2. Using a sharp Stanley knife and a straight edge, cut the membrane to the required size.
  3. Allow a small overlap (5 to 10mm) between sheets for complete coverage.

Tip: For ceiling installations, cutting smaller sections will make handling easier.

Step 3: Apply Adhesive to the Surface

  1. Choose a suitable adhesive, such as GenieMat Glue or a strong contact adhesive.
  2. Use a trowel or roller to apply a thin, even layer of adhesive to the surface.
  3. Work in small sections, ensuring the adhesive does not dry before applying the membrane.

Note: For contact adhesives, apply adhesive to both the surface and the back of the Tecsound membrane, allowing it to become tacky before bonding.

Step 4: Fix Tecsound 70 in Place

  1. Start at the top of the wall, ceiling, or floor, carefully aligning the first section of Tecsound 70.
  2. Press the membrane firmly into place, smoothing it out as you go.
  3. Use a hand roller to ensure full adhesion and eliminate air bubbles.
  4. Continue applying Tecsound 70, ensuring each sheet overlaps by 5 to 10mm for a tight seal.

Step 5: Overlap and Seal Joints

  • Ensure Tecsound 70 overlaps slightly between sheets to maintain a complete soundproofing barrier.
  • Press firmly along overlaps to ensure a tight seal.
  • Use Tecsound Jointing Tape or additional adhesive along seams if necessary.

Step 6: Trim and Finish

  • Use a sharp Stanley knife to trim excess membrane around edges, sockets, or corners.
  • Around electrical sockets or switches, apply Acoustic Putty Pads to prevent sound leakage.
  • Seal any remaining gaps or edges with Acoustic Sealant to maximise soundproofing performance.

After Installation: Additional Layers and Covering

Once Tecsound 70 is installed, it can be:

  • Left exposed, as it is flexible yet highly durable.
  • Covered with plasterboard or MDF, secured with screws or adhesive.
  • Combined with Rockwool RW5 Acoustic Wool, or other materials for enhanced soundproofing.

Final Tips for a Successful Installation

  • Allow Tecsound 70 to acclimate in the room for at least 24 hours before installation.
  • Work in pairs, as handling large sections can be difficult.
  • Apply firm pressure with a roller to ensure full adhesion and eliminate air pockets.
  • Ensure complete coverage, as any gaps will allow sound to escape.

Installing Tecsound 70 Acoustic Membrane is an effective way to reduce airborne noise in homes, offices, studios, home gyms, and other high-noise environments. Its high-density composition and flexible design allow for easy installation on a variety of surfaces, providing long-lasting soundproofing performance.

By following these steps, you can achieve a professional-quality installation that significantly improves noise control in your space.

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.