Pianotech

  • 1.  Keytop Install (one note)

    Member
    Posted 01-02-2024 19:58
    Well, we all come upon "firsts" even if we've been in the industry for some years...so forgive me, but
    This will be my first keytop repair/install. Customer is missing this keytop so I will need to remove the broken piece and install a new plastic key top for this one note. Assuming I had no tools whatsoever, what all will I need as far as tools, supplies, equipment, anything else? Provide an exhaustive list please, I love detail.
    Thanks folks.


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    Cobrun Sells
    cobrun94@yahoo.com
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  • 2.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-02-2024 20:38

    Chisel

    File(s)

    Small clothing iron

    Keytop Glue (not contact cement), PVC-e, Eileen's Tacky Glue

    Rags

    Keytop replacement(s)

    White-out/paint

    Chisel off the remaining keytop.  If necessary, you can place a damp rag over the keytop and heat with an iron.  This will usually soften the glue.  Chisel off any remaining glue on the keystick.  If you're replacing ivory, paint the keystick with white/out, then put glue on top of it.  Ivories are translucent, so you want white color underneath.  It will be challenging to match the color of white that the piano has.  On older pianos, you can get off-white color keytops.  There are imitation ivories that look like the real thing.  Spread glue on the keytop and put into place, centering it.  You'll use a file to remove the excess overhang on the sides.  Also, there are short and long fronts on keys, so be sure the keytops you're replacing with match the size of the originals.  When you install the new ones, you'll most likely have to file the keytop so they match the notch in the keystick.  Wait for the glue to dry before doing any filing.  You can sand/scrape/buff the edges of the keytops so they're slightly rounded.  Be sure to match the lip overhang when you glue the keytops on.  Using any of the Sobo-type glues won't require any clamping, just press them down and let them dry.  On your job, you'll need keytops that don't have fronts molded on.  You can get keytops with or without fronts.  You "can" use with fronts if you want, but you'll have to shim out the keyslip so they don't bind there.  If you're doing ivories, and an entire set, you'll have to shave down the keysticks because the plastic replacements are thicker than the ivories.  That's a whole 'nuther ball o'wax.

    Good fun, have luck.



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    Paul McCloud, RPT
    Accutone Piano Service
    www.AccutonePianoService.com
    pavadasa@gmail.com
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  • 3.  RE: Keytop Install (one note)

    Posted 01-03-2024 13:10

    Hello Paul,

    Do you know where one can get the key tops that look like Ivory?  I had a set from many years ago and I cannot remember where I got them.  I didn't see them on the  Schaff or Pianotek websites.

    Thanks

    Patrick



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    Patrick Greene
    OWNER
    Knoxville TN
    (865) 384-6582
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  • 4.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-03-2024 14:49

    I believe the maker/brand was Vagias (sold by various suppliers). Contact Reyburn for the latest ivory substitutes (Elforin, I think, maybe others too).



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    Patrick Draine RPT
    Billerica MA
    (978) 663-9690
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  • 5.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-03-2024 20:08

    https://www.howardpianoindustries.com/simulated-ivory-piano-keytops-one-octave/?sku=V-SIKO&srsltid=AfmBOoqf6gkUb0mukXisFHTWqlz52QlQET5KfspTCQOcnVrMYV0nujWiDbI

    I can't recall who used to sell them.  But he has them, and at good price.



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    Paul McCloud, RPT
    Accutone Piano Service
    www.AccutonePianoService.com
    pavadasa@gmail.com
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  • 6.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-03-2024 21:33

    "Do you know where one can get the key tops that look like Ivory?  I had a set from many years ago and I cannot remember where I got them.  I didn't see them on the  Schaff or Pianotek websites. Thanks Patrick"

    Coincidentally, I just had to replace about 11 missing ivories on an old Kohler grand today and I didn't have enough Vagias key tops, so I did the best matching up msc. old ivories.  Then I ordered a set of Vagias from Schaff.

    I frequently go through my collections of old ivories and find that the best match for color and size ends up being a Vagias key top (please note that these are usually old uprights on their last legs).

    My only problem with Vagias key tops is that the material is softer than ivory or newer key top material (and fingernails) and it tends to wear poorly, but then these are pianos with only a 10 to 20 year life expectancy anyway.  If the piano is worth anything a complete new set of key tops might be warranted.



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    Blaine Hebert RPT
    Duarte CA
    (626) 390-0512
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  • 7.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-02-2024 20:41
    Coburn

    The hardest part of this job is to match the new keytop with the others. 
    To replace the new keytop, you will need to remove the key from the piano. Once you've got it out, use a chisel to remove the old, broken keytop. When you put on the new top, make sure the front of the keytop lines up with the front of the other ones. When this happens, however, the notch might not line up with the other. It's more important to match the front, and then use a file to make the notch fit. You will also need to file the side of the keytop to the side of the wood stick.  

    Wim





  • 8.  RE: Keytop Install (one note)

    Registered Piano Technician
    Posted 01-03-2024 00:29

    One tool that I recommend is a good, fine file (mill usually).  I like to put mine on a belt sander and grind off at least one edge so I have a side that I can file without cutting notches into the corner.

    If you are doing more than one (a set) I have a file that I have epoxyed onto a squared block of good hard maple that will cut corners that are perfectly square.



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    Blaine Hebert RPT
    Duarte CA
    (626) 390-0512
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