[b]Non Warping Timber[/b] does it exist? :D

Discussion in 'Carpenters' Talk' started by Dewy, Feb 16, 2004.

  1. Dewy

    Dewy New Member

    Years ago on 'Tomorrows World' they showed a process that would stop wood ever shrinking, expanding or warping.
    The rough sawn timber was put in a large vacuum vessel & all the moisture content was sucked out then replaced by a polyurethane mist. As wood is hydroscopic it absorbed the polyurethane to replace the moisture that was removed. Once dry the wood could be machined with total accuracy without ever moving.

    Did this process ever get used commercially or was the polyurethane considered a hazard?
    It's always nice to know what happened to some of the inventions once shown as the future.
     
  2. WOLF

    WOLF New Member

    just read one of my previous postings about the "WONDERFUL POLYURETHANE", and how it has actually failed to meet it's required level of brilliance, and you will see why, this system was short lived if it ever actually got in to full time use!!!!
    timber is natures way of letting us know it is still alive and a kicking!!!!!!!!!!!!a bit like the indestructable cd disc... the makers do not actually produce them as they were going to originally, as if they did, they would not wear out . and so repeat business would be exactly NOWT!!!!
     
  3. Dewy

    Dewy New Member

    You never know WOLF.
    They may decide to try that process with french polish or even VARNISH
    (yes I know french polish is varnish as well).
    Then no one would ever have to varnish their wood.
    It would just need a final rub down. hehe
     
  4. dewaltdisney

    dewaltdisney New Member

    Dewy, they actually found that it was better to chip up the timber and mix it with resins. The result was a very stable bit of timber called chipboard.

    HA HA

    DWD
     
  5. hillheader

    hillheader New Member

    You can use TEG (tri-ethylene glycol) or is it PEG - poly-....? Anyway available from craft shops (e.g. Craft Supplies in Derbyshire). Diffuses into the water in the wood to prevent the wood drying. Useful for wood turning but makes everything very "soapy". If it doesn't work makes a great combination car cleaner and antifreeze!
     
  6. hab

    hab New Member

    It's PEG( Poly Ethylene Glycol) and there was quite a vogue for it some while back to stabilise wood turning blanks which were not fully dry.The big drawback was that the PEG is hydroscopic and tries to re- absorb moisture - hence the "soapy" reference.It was thus almost impossible to finish properly.I believe polyurethane would work but for how long?
     
  7. bodget&scarpers

    bodget&scarpers New Member

    any one told jewsons this ?
     

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