Density Hardboards > 900kg/m3Mediumboards* > 400kg/m3 to <900kg/m3Softboards > 230kg/m3 to <400kg/m3*Mediumboards (which should not be confused with Medium Density Fibreboard – MDF) can be sub-divided into:Low density mediumboards 400kg/m3 to <560kg/m3High density mediumboards 560kg/m3 to <900kg/m3 Composition & Manufacturing process Wet process fibreboards can be made using either softwood or temperate hardwood species (or both) (some low density mediumboards are made from recycled …
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