Glass is essentially used for hobby products, when the weight and properties mentioned above for carbon are not so important, hovewer the goal is a functionality and usability of the product for specific purpose in a ordinary life.
Glass is used for the production of composites, where it is not such a big emphasis to get perfect properties in the bending tests, torsion and the external pressure resistance as it is in products, that are made from the carbon.
The advantage of the glass is a fact, that glass doesn´t conduct the electric current and thus may be preferred in applications, where there is a risk of a contact of the product with the electrical discharge.
