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E-glass fibre
0.7-2 usd/kg
E-glass, so-called because it was originally developed for electrical insulators (the boron in its chemistry improves electrical properties), is most common type of glass fibre. It is an alumina‐borosilicate glass with low levels of alkali oxides.
Production of glass fibre has become very efficient and cost-effective, with prices starting at less than 1 usd/kg, partly due to the huge demand from wind turbine manufacture, and automotive application.
Sustainability concerns
Non-renewable ingredients
Raw material generates polluting by-products
Compared to other high performance fibres, such as carbon and aramid, E-glass offers a very cost-effective reinforcement suitable for a huge range of applications. It is used in laminated high-strength composites, and as a short fibre in mass-produced plastic parts, such as made from polypropylene (PP), nylon (PA) and thermoplastic polyester (PET and PBT). However, E‐glass fibres are susceptible to chloride ion attack and are unsuitable for marine applications.
