AR Glass Fibres are available in 13mm or 19mm with 200 filaments per strand bundle and a filament diameter of 18 microns.
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Alkali Resistant (AR) Glass Fibres are designed specifically for use in concrete. They are manufactured from a specially formulated glass composition with an optimum level of Zirconia (Zr02). AR Glass Fibres have high tensile strength and modulus, do not rust like steel, and are easily incorporated into concrete mixes.