Geoff,
Yamaha labeled that "Ivoritis" and for a while there, they were replacing entire keyboads. One could contact them and find out what their policy is now. Or, just replace the keytop material with a good set of Ivorine, (Pyralin) or other high grade Plastic. You may be able to get the material from Yamaha, don't know. Whatever material you use, make sure it is at least 6 1/4" long in the blank form! Yamaha keys are longer than the majority of pianos. (Just so's ya know.<G>) I have specially cut blanks just for the Yamaha in my shop.
Best,
Joe
-----Original Message-----
From: Geoff Sykes
Sent: May 15, 2014 10:26 PM
To: pian...@googlegroups.com
Subject: [pianotech] Stained Ivorite key tops
Yamaha C5, (2009).
Customer is a teacher. She has every student wash their hands before
lesson. She cleans the entire keyboard every evening after the last lesson,
usually with mild dish washing soap and water, (being careful not to get
the keys "wet"). Says the middle section, only, of the keyboard, the area
that gets played the most, is starting to exhibit a slight greenish stain
that she can't get out. I have not yet personally seen it. She claims to
have tried alcohol, (Handi-Wipes), and Cory key bright to no effect.
Any ideas?
Any recommendation?
Thanks --
-- GS
Captain of the Tool Police Squares R I gpianoworks.com
| Dish washing soap is also, in my opinion, not the best idea. (Due to the chance of leaving rot-able residues.) I'd suggest "Windex". (Others, please feel free to differ.) Thumpe Sent from Yahoo Mail for iPad |
I routinely recommend glass cleaner, or Windex, to my customers and suggest that dish soap be the second choice if the glass cleaner isn't cutting it. However, I can't be there all the time to make sure that's what they actually use.
On Friday, May 16, 2014 7:10:30 AM UTC-7, Euphonious Thumpe wrote:
Dish washing soap is also, in my opinion, not the best idea. (Due to the chance of leaving rot-able residues.) I'd suggest "Windex". (Others, please feel free to differ.)
Thumpe
Sent from Yahoo Mail for iPad
usually with mild dish washing soap and water, (being careful not to get
the keys "wet"). Says the middle section, only, of the keyboard, the area
that gets played the most, is starting to exhibit a slight greenish stain
that she can't get out. I have not yet personally seen it. She claims to
have tried alcohol, (Handi-Wipes), and Cory key bright to no effect.
Any ideas?
Any recommendation?
Thanks --
-- GS
Nothing keeps them clean, ivoritis .
I routinely recommend glass cleaner, or Windex, to my customers and suggest that dish soap be the second choice if the glass cleaner isn't cutting it. However, I can't be there all the time to make sure that's what they actually use.
On Friday, May 16, 2014 7:10:30 AM UTC-7, Euphonious Thumpe wrote:
Dish washing soap is also, in my opinion, not the best idea. (Due to the chance of leaving rot-able residues.) I'd suggest "Windex". (Others, please feel free to differ.)
Thumpe
Sent from Yahoo Mail for iPad
From: Joseph Garrett <joega...@earthlink.net>;
To: <pian...@googlegroups.com>;
Subject: Re: [pianotech] Stained Ivorite key tops
Sent: Fri, May 16, 2014 6:27:19 AM
Geoff,
Yamaha labeled that "Ivoritis" and for a while there, they were replacing entire keyboads. One could contact them and find out what their policy is now. Or, just replace the keytop material with a good set of Ivorine, (Pyralin) or other high grade Plastic. You may be able to get the material from Yamaha, don't know. Whatever material you use, make sure it is at least 6 1/4" long in the blank form! Yamaha keys are longer than the majority of pianos. (Just so's ya know.<G>) I have specially cut blanks just for the Yamaha in my shop.
Best,
Joe
-----Original Message-----
From: Geoff Sykes
Sent: May 15, 2014 10:26 PM
To: pian...@googlegroups.com
Subject: [pianotech] Stained Ivorite key tops
Yamaha C5, (2009).
Customer is a teacher. She has every student wash their hands before
lesson. She cleans the entire keyboard every evening after the last lesson,
usually with mild dish washing soap and water, (being careful not to get
the keys "wet"). Says the middle section, only, of the keyboard, the area
that gets played the most, is starting to exhibit a slight greenish stain
that she can't get out. I have not yet personally seen it. She claims to
have tried alcohol, (Handi-Wipes), and Cory key bright to no effect.
Any ideas?
Any recommendation?
Thanks --
-- GS
=
| "Windex" was a "generic" reply. (Like "Kleenex".) I actually, when I clean keys, use the "Publix" supermarket brand of window cleaner. (It has fewer headache-inducing fumes than "Windex".) But trying the vinegar based type first makes sense. |
Nope. It's the plastic being faulty. Fix? Replace it.
Joe
-----Original Message-----
>From: Douglas Gregg <class...@gmail.com>
>Sent: May 17, 2014 7:12 AM
>To: pian...@googlegroups.com
>Subject: Re: [pianotech] Stained Ivorite key tops
>
>It might be worth trying 3% hydrogen peroxide for cleaning the keys in
>the future. It might slowly take out the stain as well as disinfect.
>
>Doug Gregg
>
>