Fibreglass is a composite material consisting of glass fibre in the form of fabrics or TNT and thermosetting resin, generally liquid and with a polyester, vinylester or epoxy base.
Chemicals are added to the resins, thereby leading to polymerisation also at room temperature and the resins are spread on glass fabrics with bristle rollers and brushes or by using more sophisticated techniques, thereby impregnating them.
The solidification of the resins (matrices) incorporates the glass fibres (reinforcements), thereby forming fibreglass. By performing the spreading process on a mould, one can reproduce the drawing to make products with a varying size, thickness, sturdiness (several reinforcement layers), solidity, weight and colour (by adding pigments to the resins).
Starting in the 1950s, fibreglass has been used for a number of applications to make objects exposed to the elements, namely: cars and boats, pools, tanks and skylights.
Owing to its excellent solidity, resistance to stress and lightness, fibreglass is also used in the aeronautic sector, to make wind turbines and sports equipment.
Thanks to its corrosion resistance in basic environments like sea water, fibreglass is used to produce pipes, tanks, silos and grids.
In the industrial field, fibreglass is also employed to make atmospheric tanks for liquids.
Due to another property, i.e. its poor electrical conductivity, fibreglass is often used to make covers for electrotechnical equipment.
Moreover, as well as for racing vehicles (which need to be light), fibreglass is also used to create additional components merely with an aesthetic value for bodyworks or hulls.