The data reported in the “technical features/technical data sheets” refer to samples obtained in the perpendicular plane to the growth direction of the product during the reaction phase and not near the external surfaces. High resilience materials such as HR and AT must be previously subjected to mechanical treatments to generate cell breakage (mangling).
We recommend to obtain the desired details so that during the final use phase they are stressed in a parallel direction to the direction of growth.
Data and information contained in this document and in the each technical sheets are based on the knowledge available on the issue’s date or subsequent revisions. SITAB PE reserves the right to modify the data herein reported at any time.
SITAB PE does not guarantee the sufficiency of the recommendations/warnings contained in this document and in each technical data sheets. Furthermore it’s not excluded that further measures may be required in particular or exceptional circumstances.
In case of compressed materials it will be necessary a waiting time of at least 24 hours from the material decompression. The material must be kept compressed for the shortest possible time, ideally just for the time necessary for transport. In the 24 hours following decompression (or at least for a few hours) it is necessary that the blocks/plates are not subjected to pressure from any direction, such as load compression, blocks / plates stacked on one another or pressed against the wall. For viscoelastic materials it is necessary to consider their thermo sensitivity: the ideal temperatures should be higher than 15 degrees. It is also necessary that the support base is sufficiently smooth to allow the material to “slip”, thus facilitating the return.
Air Memory
Completely breathable
The continuous air exchange in Air products prevents the stagnation of humidity, the formation of mold and reduces the conditions favorable to the development of mites. This is possible thanks to the microporosity ensuring by the open cell structure. Air Memory, the viscoelastic memory foam, is the result of a new formulation mainly based on the use of ingredients of natural plant origin, and therefore renewable.
Air memory products
Warnings
Air
Completely breathable
Complete and unparalleled breathability is the distinctive feature of AIR ADVANCED MEMORY polyurethane foams, the viscoelastic memory foam line and AIR ACTIVE, the evolution of natural latex.
The technological detail of these microporous foams ensures constant airflow between cells and prevents the formation of moiture pockets considered fertile ground for the proliferation of mites and bacteria.
The specific technological use of air during the manufacturing of AIR polyurethane foams, allows the creation of innovative products, with characteristics of high breathability, granting a continuous aeration of the products during their use.
Breathability test
The comparative tests, certified according to ISO 9237: 1995, show that the breathability of the viscoelastic foam AIR ADVANCED MEMORY reaches high values, while for the pneumatic viscoelastic foams with a closed cell structure, the value is close to zero.
GEL | Refreshing effect
Thermal conductivity (shown by the symbol λ, lambda) measures the capacity of a given material to release heat. The greater the value λ, the better the heat dissipation of that material is.
In materials with a closed cell structure thermal exchanges occur principally by conduction through the solid walls of the cells and by radiation through the cells themselves, whereas in open cell structures they occur mainly by the convection between cells. It is therefore clear that in closed cell foams, as in traditional pneumatic viscoelastic ones, heat dissipation occurs very slowly. On the contrary, in innovative open cell foams such as AIR ADVANCED MEMORY GEL, the constant airflow optimizes heat dissipation by creating a beneficial refreshing effect.
The curves in the graph show how the dissipation of the heat occurs much more effectively in the open cell foams AIR than a normal closed cell visco foam. The test has been performed according to the UNI EN 12667 standard.
ICE | comfort and freshness
From ongoing research on innovation and performances, SITAB developed ICE sensation, a comfortable and lasting feeling of freshness.
SITAB applied this special technology to the AIR MEMORY open cell polyurethane foams, the viscoelastic memory foam and AIR ACTIVE, the evolution of natural latex. Our new polyurethane foams – AIR MEMORY ICE, foam viscoelastic and AIR ACTIVE ICE with a latex effect – ensure a lasting and pleasant refreshing feeling thanks to their temperature-regulating control in the areas in contact with the body, thus creating and an ideal microclimate which allows a refreshing and comfortable rest. Thanks to their high degree of breathability and resilience, these foams are perfectly suitable for the manufacturing of anatomical structures for mattresses with top-level properties of comfort and freshness. The characteristics of the ICE formulation ensure innovative thermoregulatory performance that can improve the quality of sleep, greatly reducing the proliferation of bacteria and mold, guaranteeing a highly hygienic and comfortable product.
