22mm Hidrofugo MR MDF (Medium Denisty Fiberboard) 2850 X 2100 X 22mm Fibrapan Moisture Resistant is made of selected wood fibres (MDF). Recommended for their use in moist environments with excellent mechanical properties. The most important characteristics of these products are: high dimensional stability, low swelling and absorption and excellent machining quality. As these boards are highly resistant to moisture, they can be used in more severe conditions than standard MDF.