A viscoelastic or viscoelastic cushioning protection is a type of viscoelastic material formed to arrange elements that protect the human body or other element of overexertion for carrying pressure on the surface.
Role in Memory Foam Mattresses
Use of viscoelastic in the rest sector is increasingly rooted because the services offered are currently the most recommended for a healthy sleep with the medium firmness combined with adaptability. However, you must know how to differentiate between different types of viscoelastic and know the characteristics and densities offered by each of them in order to evaluate a resting equipment. For the finest collection of the memory foam mattresses, go to http://finance.yahoo.com/news/top-10-best-memory-foam-015400316.html.
Types of Viscoelastic
Mainly there are two types of viscoelastic material used for the manufacture of memory foam mattresses as viscoelastic foamed or molded.
The viscoelastic foam is commonly referred to as ‘open pore’ or ‘open cell’ that makes the entry and exit of air faster. For the manufacture of foaming, the viscoelastic is poured on an open surface and a chemical is added which, when reacted with air, grows without limitations. After this process, the viscoelastic block is cut to the desired extent. The main drawbacks of this process is that the density of the material is not homogeneous throughout its surface, which can lead to premature deformations of the mattress.
In the viscoelastic molding manufacturing process, it is distinguished in that the foaming chemical reaction between the components is performed in a closed mold. The result is an open pore material but smaller where the air circulation is slower and the viscoelastic sensation is greater. This process ensures that the density that is certified is homogeneous throughout the mattress surface.
The ventilation of this type of material is very advantageous for the reason that it does not need a special perspiration like other types of mattresses like those of natural latex, the viscoelastic, being a synthetic material and porous, transpires by itself.
Another aspect to take into account is the quality of the foams that are used. It is not the same thing as viscoelastic foam called only one that guarantees to be high resilience. This means that the foam has been subjected to a dynamic fatigue test, in which the material is stressed to guarantee its strength.
Under the padding, the core contains the main plate of suitable material. Viscoelastic mattresses can contain between 4 and 21 cm of this material in the core just like in the padding and it depends on the range and the manufacturer.