Ctk block pro 2.0 - acoustic membrane 37x50cm

ATTENTION! Some suppliers of soundproofing mats of other brands sometimes declare the non-toxicity or safe use of their products only on the basis of the RoHS certificate. Such a certificate does not apply to soundproofing materials, as the RoHS directive only applies to electrical and electronic products, not chemical ones. Such soundproofing materials may not meet legal requirements or guarantee safe use. DAMPING EFFECTIVENESS When soundproofing a car, the desired effect is achieved by acoustic insulation of its interior and, above all, by significantly reducing (damping) the amplitude of mechanical vibrations of metal and plastic elements of the car's body and cabin. For this purpose, flexible and slightly elastic materials (e.g. based on butyl rubber) are applied to the damped elements, the structure of which involves large losses of mechanical energy caused by internal friction. As a result, vibration energy is absorbed by the damping material and converted into heat. The ability of a given material to absorb the energy of mechanical vibrations depends on w