When soundproofing a wall it is necessary to improve three basic components.
1. The mass of the wall - This is normally achieved by adding acoustic plasterboard and high density products such as Tecsound 50.
2. The resilience of the wall - This is the springiness of the wall. Without this, the addition of the mass will have very little impact. The Tecsound 50 acts as resilience and mass.
3. The sound "absorbency" of the wall - By adding different components the sound gets trapped more easily within the wall.
The Tecsound 50 slim wall provides a moderate level of soundproofing where the space is very tight. It is important to realise that simply putting acoustic plasterboard direct to the wall offers virtually no improvement as you require resilience and absorbency which in this case is provided by the Tecsound 50. The addition of Tecsound 50 will help reduce the resonance passing into the plasterboards.