- Small wood fibers. Most MDF is made from softwood sources. - Adhesives: UF (Urea Formaldehyde) glue for dry environments. For high humidity environments, Melamine resin or Phenolic resin and Polymeric Diphenylmethane Diisocyanate (PMDI) are added to the glue to create a moisture-resistant MDF material. Common thickness: 2.5, 3, 5.5, 6, 9, 12, 15, 17, 25 mm Common sizes: Regular size 4*8 / Extra size 4*9 / Large size 6*8 Apply: Production of wardrobe doors, kitchen cabinet doors / furniture production / production of children's toys / used as packaging, pallets, etc.