Medite Tricoya Extreme medium density fibreboard (MDF)

Medite Tricoya Extreme is a medium density fibreboard (MDF) by Roseburg with no added formaldehyde (NAF) in combination with acetylated wood fibre. This means the wood is treated with acetic anhydride, resulting in a harder, more dimensionally stable and insect resistant composite. As a result, it can be used in many applications where MDF was previously not suitable — it is guaranteed for 50 years outdoors and 25 years in ground. Image Roseburg.