TECSOUND 50 Non-Adhesive Membrane

TECSOUND 50 Non-Adhesive Membrane Technical Specifications

TECSOUND 50 Non-Adhesive Membrane is a flexible, high-density acoustic barrier designed to add mass to walls, floors and ceilings. With a mass of 5kg/m², it provides a slim acoustic layer that can be built into a wide range of soundproofing systems.

Product Specification

Suitable Surfaces and Systems

TECSOUND 50 Non-Adhesive Membrane can be used within a range of wall, floor and ceiling constructions. It is commonly installed with:

• Plasterboard systems
• Timber board systems
• MDF and sheet board layers
• Floating floor systems
• Ceiling linings and bulkheads
• Resilient bar or furring channel systems
• Acoustic mineral wool and cavity insulation

Acoustic Use

TECSOUND 50 is mainly used to help reduce airborne noise, including voices, TV noise, music and general sound transfer through walls, floors and ceilings.

When used within the correct layered system, it can also help with vibration damping and impact noise reduction. The final acoustic performance will depend on the full construction, not just the membrane alone.

Common System Uses

• Party wall soundproofing
• Floor soundproofing build-ups
• Ceiling soundproofing systems
• Board sandwich constructions
• Studios, music rooms and media rooms
• Home offices and residential refurbishments
• Commercial offices, meeting rooms and shared workspaces

Important Performance Note

Soundproofing performance depends on the full system. The final result will be affected by the existing wall, floor or ceiling construction, the number of layers used, the supporting materials, the installation quality and whether gaps, joints and flanking paths are properly sealed.

For best results, TECSOUND 50 is commonly combined with other acoustic materials such as acoustic plasterboard, acoustic mineral wool, resilient channels, furring channels and acoustic sealant.

Handling Advice

TECSOUND 50 is a high-mass product, with an approximate roll weight of around 36kg. For larger areas, ceilings or overhead work, we recommend working in pairs and cutting the membrane into manageable sections before fitting.

Visit our fitting instructions section for more detailed guidance specific to your application. Please contact our team if you have any questions about this product.

How to Install TECSOUND 50 Non-Adhesive Acoustic Membrane

TECSOUND 50 Non-Adhesive Membrane is a high-density acoustic membrane designed to reduce airborne noise transfer through walls, ceilings and floors. Unlike the self-adhesive SY version, this membrane does not have a peel-and-stick backing, so it needs to be installed using a suitable adhesive, mechanical fixing method, or held securely within a layered acoustic build-up.

Because it is flexible and easy to cut, TECSOUND 50 can be used in a wide range of DIY and trade soundproofing projects, including party walls, ceilings, floors, studios, offices, media rooms and home refurbishments.

What You’ll Need

• TECSOUND 50 Non-Adhesive Acoustic Membrane
• Measuring tape
• Sharp Stanley knife or utility blade
• Straight edge or metal ruler
• Suitable adhesive, such as a compatible contact adhesive or acoustic adhesive
• Trowel, brush or roller for applying adhesive
• Hand roller for pressing the membrane into place
• Gloves for handling
• Acoustic sealant for edges and gaps
• Acoustic putty pads for socket boxes, if required
• Tecsound jointing tape or suitable acoustic tape, if required

Before You Start

Allow TECSOUND 50 to acclimatise in the room for around 24 hours before installation where possible. This helps the membrane settle to the room temperature and makes it easier to handle and position.

TECSOUND 50 is a high-mass product, so larger sections can be difficult to control, especially on ceilings or overhead areas. For larger installations, we recommend working in pairs and cutting the membrane into manageable sections before fitting.

Step 1: Prepare the Surface

Before installing the membrane, make sure the surface is properly prepared. The surface should be:

• Clean — remove dust, dirt, grease, debris and loose particles.
• Dry — avoid installing onto damp or wet surfaces.
• Smooth and stable — fill any cracks, gaps or uneven areas before fitting.
• Structurally sound — do not apply to weak, crumbling or unstable surfaces.

TECSOUND 50 can be installed with suitable plasterboard, masonry, timber, MDF, concrete and board systems. Good preparation is important because loose material, dust or moisture can reduce the effectiveness of the adhesive or fixing method.

Step 2: Measure and Cut the Membrane

1. Measure the area where the membrane will be installed.
2. Mark the required size on the membrane.
3. Use a sharp Stanley knife or utility blade with a straight edge to cut the membrane neatly.
4. Cut accurately to reduce gaps, waste and weak points in the finished system.

Allow for a small overlap of approximately 5mm to 10mm between sheets where possible. If installing on a ceiling, pre-cut smaller sections to make handling, positioning and fixing easier.

Step 3: Apply the Adhesive or Fixing Method

Choose a suitable adhesive or fixing method for your application. For wall and ceiling installations, a compatible contact adhesive or acoustic adhesive may be used. Always follow the adhesive manufacturer’s instructions for coverage, open time, drying time and surface compatibility.

1. Apply adhesive to one section at a time so it does not dry before the membrane is positioned.
2. Use a trowel, brush or roller to create an even adhesive layer.
3. If using contact adhesive, apply it to both the surface and the back of the membrane if required by the adhesive instructions.
4. Allow the adhesive to become ready for bonding before positioning the membrane.

For floor systems or board sandwich constructions, the membrane may be laid or held in place by the surrounding layers rather than bonded directly. The correct method depends on the full soundproofing build-up.

Step 4: Fix TECSOUND 50 in Place

1. Carefully align the membrane with the installation area.
2. Press the membrane firmly onto the prepared adhesive or into position within the system.
3. Smooth the membrane as you work to reduce air pockets and wrinkles.
4. Use a hand roller or firm pressure to ensure good contact across the full surface.
5. Continue fitting each section, keeping coverage as continuous as possible.

Work slowly and methodically. Avoid leaving gaps between sheets, as gaps can reduce the overall acoustic result.

Step 5: Overlap and Seal the Joints

Where sheets meet, overlap TECSOUND 50 by around 5mm to 10mm where possible. Press the overlap firmly to create a close-fitting joint.

For improved acoustic performance and airtightness, joints can be reinforced using Tecsound jointing tape or a suitable acoustic tape. This helps create a more continuous soundproofing layer, especially in higher-performance wall, floor and ceiling systems.

Step 6: Trim Edges and Openings

Once the membrane is fitted, trim any excess material around edges, corners, sockets, switches, pipes or openings using a sharp blade and straight edge.

Small gaps can reduce soundproofing performance, so seal weak points carefully. Use acoustic sealant around perimeter edges, joints and small gaps. Where electrical sockets or switches are present, use acoustic putty pads to help reduce sound leakage through the back boxes.

Step 7: Add the Next Layer

Once TECSOUND 50 has been installed, it can be covered or incorporated into the next part of the soundproofing system. Depending on your project, this may include:

• Acoustic plasterboard
• Standard plasterboard
• MDF or timber board
• Floating floor layers
• Resilient bars or furring channels
• Acoustic mineral wool within the cavity
• Additional acoustic membrane layers where specified

TECSOUND 50 performs best as part of a complete acoustic system. For example, wall and ceiling systems often combine acoustic membrane, acoustic insulation, resilient isolation products, plasterboard layers and acoustic sealant to improve airborne noise reduction.

Installation Tips

• Check adhesive compatibility — use a suitable adhesive for both the membrane and the surface.
• Work in manageable sections — especially on ceilings and larger areas.
• Use firm pressure — a roller helps improve contact and reduce trapped air.
• Keep coverage continuous — gaps can reduce acoustic performance.
• Seal all edges and penetrations — sound can pass through small openings.
• Use sharp blades — clean cuts make fitting easier and reduce waste.
• Work in pairs where needed — the membrane is heavy and can be difficult to handle alone.

Important Soundproofing Note

Soundproofing performance depends on the full system, not just one individual product. TECSOUND 50 adds valuable acoustic mass, but the final result will also depend on the existing structure, supporting materials, installation quality and how well gaps and flanking paths are controlled.

If you are unsure how to install TECSOUND 50 Non-Adhesive Membrane for your wall, ceiling or floor project, please contact our team before fitting. We can help advise on the most suitable build-up for your room, noise type and available space.