Engineered Wood

Engineered wood is also called as composite wood, manmade wood or manufactured wood. These products are manufactured by binding strands, particles, fibre’s or veneers of wood together with a strong adhesive. These include plywood, hardboard, particle board, veneer sheet, oriented strand boards, Glulam, etc. These products are manufactured to make wood more easily to use for commercial purposes; be it construction, home appliances or even industrial purposes.

ADHESIVES USED FOR MAKING ENGINEERED WOOD

  • Urea-formaldehyde resins (UF): most common, cheapest, and not waterproof.
  • Phenol-formaldehyde resins (PF): yellow/brown, and commonly used for exterior exposure products.
  • Melamine-formaldehyde resin (MF): white, heat and water resistant, and often used in exposed surfaces in more costly designs.
  • Methylene diphenyldiisocyanate (MDI) or polyurethane (PU) resins: expensive, generally waterproof, and does not contain formaldehyde.

Below are some common engineered products:

 

Oriented Strand Boards:

OSB is made from wood ground into thin wood strands. These strands are mixed with wax and adhesive and then hot pressed. OSB is stronger and stiffer. They are more cost effective than plywood.
OSB’s are not really recommended for outdoor use as they are vulnerable to weather. The edges can expand up to 15% especially if they are cut edges.


  • CHARECTERISTICS: Strong, stiff and durable. However, it is not resistant to moisture and humidity. It can swell at edges.

  • USAGE:Furniture, cabinets, roofing, flooring, home appliances, etc.

 

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