High modulus glass fibre

5-10 usd/kg
Circularity potential
Low
Strength
Extreme
Production energy
Medium
Stiffness
High
Embodied CO2
Medium
Density
High

High modulus glass fibre, used in the production of high strength laminated composites, is produced from aluminosilicate glass. It provides superior properties compared to borosilicate E-glass. Used in demanding applications, such as wind turbine blades, aerospace and military, these fibres are also known as boron-free, to distinguish them from E-glass.

Electrical strength and acid corrosion resistance
ECR
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Sustainability concerns
Non-renewable ingredients
Raw material generates polluting by-products
Low circularity potential

ECR-glass is an aluminosilicate glass reinforcement fibre that is used where mechanical strength, electrical strength and resistance to acid corrosion are required. Examples include products for marine environments and pultruded sewage pipes.

Design properties
Cost usd/kg
5-10
Embodied energy MJ/kg
25-35
Carbon footprint kgCO2e/kg
2-2.5
Density kg/m3
2720
Tensile modulus GPa
80
Tensile strength MPa
3400
Hardness Mohs
7
Poissons ratio
0.21-0.24
Thermal expansion (µm/m)/ºC
4.2-8.8
Melt temperature ºC
1400
Thermal conductivity W/mK
0.95
Temperature min-max °C
-40 to 500
Thermal
insulator
Electrical
insulator