ลอกมาครับ
Although similar manufacturing processes are used in making all types of fiberboard, MDF has a typical density of 600-800 kg/m³ or .022-.029 lbs/in3, in contrast to particle board (160-450 kg/m³) and to high-density fiberboard (600-1450 kg/m³).
Another addition to the MDF range is a product named FX-Platform, produced by Norbord. It is a softwood plywood core, laminated on both sides with MDF, giving it working properties containing the advantages of both plywood and MDF.[2] This product has met the acceptance criteria for compliance with the ANSI/HPVA HP-1-2004 Section 3.12 Formaldehyde Emission Requirements for industrial panels.[3]
Lighter densities of fiberboard are commonly marketed as ultralight or LDF boards.