Mi se ufatili MDF pa MDF... MDF, tačnije, ono što mi zovemo "Iverica" je "Particle Board", MDF/Mediapan je Medium Density a ono što je kod nas poznato i popularno pod imenom "Lesonit" se na zapadu spominje kao High Density Fibreboard. Evo nekih vrednosti težina za ove materijale, mereno na konkretno dostupnim materijalima, vrednosti mogu odstupati u zavisnosti od konkretnog proizvođača, materijala, ali okvirno to je tu negde...
1) Iverica, dezen/furnirana, 18mm 10.92kg/m2 (~606kg/m3) 2) MDF 19mm, sirovi, 14.8kg/m2 (~778kg/m3) 2) HDF 3mm , dezen 2.72gk/m2 (~906kg/m3)
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MEDIUM density fiberboard: http://en.wikipedia.org/wiki/Medium-density_fibreboard Physical propertiesOver time, the word "MDF" has become a generic name for any dry process fiber board. MDF density is typically between 500 kg/m3 (31 lbs/ft3) and 1000 kg/m3 (62 lbs/ft3).[3]The range of density and classification as Light or Standard or High density board is a misnomer and confusing. Density of board when evaluated in relation to density of the fiber that goes in to making of the panel is important. A thick MDF panel at 700-720 density in case of softwood fiber panels may be considered as high density whereas a panel of same density when made of hard wood fibers is not so. The evolution of various types of different MDF was driven by the differing needs of specific applications.
High Density Fibreboard: http://en.wikipedia.org/wiki/Hardboard
It is similar to particle board and medium-density fiberboard, but is denser and much stronger and harder because it is made out of exploded wood fibers that have been highly compressed. Consequently, the density of hardboard is 31 lbs. or more per cubic foot (500 kg/m³)[1] and is usually about 50-65 lbs. per cubic foot (800-1040 kg/m³). It differs from particle board in that the bonding of the wood fibers requires no additional materials,[2] although resin is often added. Unlike particle board, it will not split or crack. It is used in construction and furniture. Hardboard is produced in either a wet or dry process. The wet process leaves only one smooth side while the dry processed hardboard is smooth on both sides.
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Što se tiče usporedbe sa metalima, tu nema usporedbe, Inox materijali variraju gustoćom od nekih 7700kg/m3 do 7930kg/m3 a razne legure aluminijuma oko 2700kg/m3. (+/- ~5%)