A scrap blade from a wind turbine was microwave pyrolysed. The recovered glass fibres were characterised by SEM and TGA. The possibility to use the fibres to prepare new composites were evaluated. Laminates were prepared where fibres mats with virgin and recovered glass fibres were altered. Mechanical testing showed that it is possible to prepapare composite with up to 35 wt.-% recovered fibre without losing too much of the mechanical properties.