MDF Primed Window Board 25x294mm 3.66m Length

MDF Primed Window Board is used for sealing the bottom of a window and filling the gap between the window and wall it has been placed in. It allows for the extra use of a window ledge and is easy to cut and install. The primed white window board can be painted to any colour and leaves a smooth and even finish. It provides a weatherproof seal that can also help with the insulation.