320gsm biaxial glass reinforcement with a +/- 45° fibre orientation suitable for use in a wide range of glass reinforced composite applications; most commonly boat hulls and vehicle panels but also recreational sports equipment and general GRP manufacturing.
Biaxial glass cloth offers mechanical performance advantages over traditional woven glass cloth (and significant advantages over chopped strand mat) because of straight, flat paths that the glass fibre bundles are stitched into. Unlike a woven cloth where the intersecting weft and warp fibres go over-under-over-under (in the case of a plain weave), biaxial cloth is actually two layers of unidirectional fibre aligned at 90° to each other. Because these unidirectional fibres take a much more direct line (rather than being woven up and down) meaning then when the laminate is stressed the fibres cannot try to 'straighten-out' like they do with a woven cloth, resulting in significant improvements in the tensile strength of the laminate.
Suitable for use with epoxy, polyester and vinylester resin systems.