Tecsound SY70 for Stud Walls

 95.00 € 19.48 per m2

Tecsound SY70 is a dense, polymer-based, asphalt-free, viso-elastic soundproofing membrane, that provides excellent acoustic insulation in different building elements particularly stud walls and partitions. It has a self-adhesive backing which will bond to a wide variety of surfaces.

154 in stock

Product Quantity Item Price
Volume Discount 5 - 99  90.25

Tecsound SY70 is a self adhesive soundproofing product used in lightweight walls and ceilings. It’s unique visco-elastic properties combined with high mass provides excellent sound insulation properties. Use Tecsound SY70 as a sandwich layer between two layers of plasterboard, OSB or Plywood to greatly improve soundproofing performance. Tecsound SY70 weighs 7.0kg per m2 at only 3.5mm thickness. 6.16m2 per roll.



• Adds mass to surfaces thus increasing sound insulation
• High sound damping capacity on metal surfaces
• High flexibility
• Adaptable to uneven and irregular surfaces
• Easy to apply
• Self adhesive – particularly suitable for vertical and overhead situations
• Cold and heat resistant
• Excellent ageing resistance
• Rotproof



• Soundproofing against airborne noise in vertical walls with low surface density (lightweight partition walls or boards made of different materials).
• Soundproofing against airborne noise in ceilings and lightweight roofs
• Reduction of impact noise level in all types of floors, sandwiched between floor slabs and loose-laid flooring.
• Damping of impact noise caused by rain or hail on metal decks.
• Combined with sound-absorbent materials, it offers products with high acoustic performance.
• Can be used to dampen resonance on the thin metal bodywork of cars and other types of machinery.


Tecsound Acoustic wall insulation build-up Sound Insulation – 58dB Wall Thickness – 124.6mm

Additional Information














Fire Rating

B-S2 d0 according to EN13501-1

Thermal conductivity coefficient (λ)


How to Install Tecsound SY70 on a Stud Wall

How to Install Tecsound SY70 on a Stud Wall

  • Remove the Tecsound SY70 from it’s packaging and roll out.
  • Measure your wall height and cut the Tecsound to size.
  • Remove the protection layer and expose the adhesive from the top 20cm.
  • Position the Tecsound at the top of the wall and press firmly into place.
  • At the same time pull the protection layer from the back and press firmly as you go down the wall.
  • Repeat this until you have the wall covered with Tecsound Sy70. Butt joints together.
  • Fix plasterboard to the wall with screws and leave a 5mm gap around the perimeter.
  • Fill gap with acoustic sealant.
  • Tape & joint to finish.