A prefabricated fairing for a wind turbine blade, the fairing extending along a fairing profile terminating at fairing lips and comprising exterior and interior fairing surfaces and a plurality of layers including fibre-reinforced layers and an exterior erosion-resistant elastomer layer forming a portion of the exterior fairing surface and being configured for defining the leading edge of the wind turbine blade, the fairing further comprises a cured first resin binding the erosion-resistant elastomer layer and the one or more fibre-reinforced layers together.