Wood (alternatives)

[Farrell]

That's what I thought about MDF. MDF is being used on some grand lids. Won't these sag after some years.....or less?

Terry Farrell
  
----- Original Message ----- 
From: "Delwin D Fandrich" <pianobuilders@olynet.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Sunday, February 16, 2003 12:27 PM
Subject: Re: Wood (alternatives)


> 
> ----- Original Message -----
> From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: February 16, 2003 4:15 AM
> Subject: Re: Wood (alternatives)
> 
> 
> > MDF ! That was it....
> >
> > sheeeshh.. I've been dinking around with my puter too much lately...
> >
> > MDF yes... Would that be good for key frames ?
> >
> > RicB
> >
> > Delwin D Fandrich wrote:
> >
> 
> Not appropriately. It is not a structural material. It has enormous amounts
> of creep. Cut a slice 25 to 50 mm wide and a 1 m long and support it on both
> ends, leaving it free in the middle. Come back after a couple of weeks of
> humid weather and check out the sag.
> 
> Actually, it has been used but it requires suitable reinforcing as in sturdy
> veneers on both sides and/or supporting logs underneath.
> 
> And it's really, really heavy.
> 
> Del
> 
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