WHAT IS GLASS WOOL

Glass, a natural and green material, is produced from three different elements:

In order to obtain fine fibers (for excellent thermal conductivity) and elastic fibers (so that the products can be subjected to high compressive and ensure the nominal thickness at the time of use) is required a special preparation of the vitrifiable composition: grinding of raw materials to achieve the required particle size, storage in silos, physico-chemical controls, perfect and homogeneous mixing.

The melting of the composition at 1400° C and the subsequent fiber process allow to obtain fibers of constant diameter and the absence of no fibered particles.

HOW IT WORKS

Glass wool thermal and acoustic insulation is based on the physical and chemical properties of the fibers.
 
As far as the heat losses are concerned, the thermal conductivity capacity is just as essential as the physical and chemical characteristics. And likewise, with regard to sound insulation, properties such as air flow resistance and mechanical rigidity are fundamental.
 
All the glass wool properties are a consequence of its own structure: the fibers are intertwined with each other, forming a myriad of cells. This open cell structure determines low thermal conductivity values, low dynamic stiffness levels, and high air flow resistance values. 
Even the thermal shock resistance has a strong influence on the applications; this feature is provided by the chemical composition of the glass fiber.
 
The reaction to fire characteristics are, in turn, affected by the type of binder (organic or inorganic) that connects the fibers in order to form the insulating products. The non-hygroscopicity of the materials is given by the absence of hollow fibers (typical of the natural fibers of vegetable origin) and by the hydrophobic components added to the binders.
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