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So who's in favor of particleboard key buttons? #1872682
04/02/12 04:40 PM
04/02/12 04:40 PM
Joined: May 2011
Posts: 173
Tampa, FL
B
Bill McKaig,RPT Offline OP
Full Member
Bill McKaig,RPT  Offline OP
Full Member
B

Joined: May 2011
Posts: 173
Tampa, FL
I tuned a Kawai upright this morning and it had HDF(high density fiber) key buttons. I hope this is not the way of the future.
The keys were also made up of finger jointed spruce. I sure hope this piano never gets wet! I also would not be excited about rebushing these keys. You wouldn't want to soak that bushing cloth out.


Professional Piano Technician serving the Tampa bay area. website: mckaigpianoservice.com
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Re: So who's in favor of particleboard key buttons? [Re: Bill McKaig,RPT] #1872684
04/02/12 04:42 PM
04/02/12 04:42 PM
Joined: Apr 2006
Posts: 2,559
Sandy Eggo, California
O
OperaTenor Offline
2000 Post Club Member
OperaTenor  Offline
2000 Post Club Member
O

Joined: Apr 2006
Posts: 2,559
Sandy Eggo, California
I am particularly unimpressed with Kawai's cost-cutting measures in the materials department. Pretty soon someone's going to try to revive the particle board soundboard...


Happiness is a freshly tuned piano.
Jim Boydston, proprietor, No Piano Left Behind - technician
www.facebook.com/NoPianoLeftBehind
Re: So who's in favor of particleboard key buttons? [Re: Bill McKaig,RPT] #1872801
04/02/12 09:02 PM
04/02/12 09:02 PM
Joined: Aug 2011
Posts: 2,626
Philadelphia area
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Dave B Offline
2000 Post Club Member
Dave B  Offline
2000 Post Club Member
D

Joined: Aug 2011
Posts: 2,626
Philadelphia area

For years I questioned Kawai's choice of materials, until I realized they all continue to work fine. I haven't seen any unexpected failures; Has anyone else?


"Imagine it in all its primatic colorings, its counterpart in our souls - our souls that are great pianos whose strings, of honey and of steel, the divisions of the rainbow set twanging, loosing on the air great novels of adventure!" - William Carlos Williams
Re: So who's in favor of particleboard key buttons? [Re: Bill McKaig,RPT] #1872851
04/02/12 10:42 PM
04/02/12 10:42 PM
Joined: Nov 2010
Posts: 134
East TN
meadpiano Offline
Full Member
meadpiano  Offline
Full Member

Joined: Nov 2010
Posts: 134
East TN
Well the only problem with particle board is when it comes in direct contact with water. Then it expands never to return again. As long as the piano does not go deep sea fishing they key buttons should last longer. This type of engineered wood is made to expand and contract as little as possible and this is wonderful for key buttons. Yes, it's cheaper but if it is an improvement in some way why not use it?

Now, I have a front door I took off of a house that is a lovely oak veneer door. The only problem is that some of the substrate is MDF and got moisture and expanded never to be the same again. So yes MDF is not the best material in all cases for sure. But if they did the R&D and made sure it can take the abuse why not!?

I would rather see a key button out of ABS than MDF or HDF but I am not sure if that would stay glued to the wood key.





Daniel Bussell MPT
Mead Piano Works
East Tennessee

Re: So who's in favor of particleboard key buttons? [Re: Bill McKaig,RPT] #1872980
04/03/12 08:16 AM
04/03/12 08:16 AM
Joined: Nov 2008
Posts: 5,977
Bradford County, PA
UnrightTooner Online content
5000 Post Club Member
UnrightTooner  Online Content
5000 Post Club Member

Joined: Nov 2008
Posts: 5,977
Bradford County, PA
I work in an MDF plant. There are many different grades. One is steamed for hours to make sure it will not come apart. When I make hobby items I routinely laminate thin boards together in key places for strength and stability. I wonder what the real "old-timers" thought when laminated pinblocks were first used. There is a time and place for everything.


Jeff Deutschle
Part-Time Tuner
Who taught the first chicken how to peck?

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