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density and dentability

Discussion in 'Luthier's Corner' started by kimstevens, Oct 13, 2009.


  1. kimstevens

    kimstevens

    Nov 12, 2002
    Hi,

    Do you guys know if there would be much difference between bodies of the same weight but different species in terms of being resistant to dents? For example, would a 4 pound alder body be about as durable as a 4 pound basswood body?

    Thanks
     
  2. mikeyswood

    mikeyswood Banned

    Jul 22, 2007
    Cincinnati OH
    Luthier of Michael Wayne Instruments
    Alder and Basswood will be about the same resistance to dents at ~.4 sg. but there are more factors than gravity.
     
  3. pilotjones

    pilotjones Supporting Member

    Nov 8, 2001
    US-NY-NYC
    For a good indicator of dent susceptability, look up a wood's Janka hardness number. This test is done by pressing a steel ball into side grain of a sample at fixed load, and measuring the diameter of the resting impression. So, while it is effectively a hardness test, it is by its nature a dent test.

    The density and hardness or dentability of different woods are strongly correlated, but not directly proportional.
     
  4. what they said above and also the choice of a hard finish would compensate for a dent prone wood.
     
  5. mikeyswood

    mikeyswood Banned

    Jul 22, 2007
    Cincinnati OH
    Luthier of Michael Wayne Instruments
    The only finish that is strong enough to prevent dents is plate steel.
     

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