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Cream to hand buff polyester finish...?
#1273122 09/23/09 12:03 AM
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Hi,

I am counting on my new Kawai piano black grand piano with polyester finish to have some slight scratches on it when it arrives next week.

I talked to the Kawai tech in my area and he said that he would most likely use a cream and hand buff the light scratches out at a cost of approx. $250.

Anyone know where I can get this cream myself and do the hand buffing myself?

Thanks as always!



Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
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Re: Cream to hand buff polyester finish...?
Pologuy #1273147 09/23/09 01:07 AM
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If the new Kawai is of Kawai's "hard finish" polyester,you're gonna need more than some hand buffing creme polish to "cut" that polyester finish. Most likely, if it is the "hard finish" there won't be any scratches in that it is very hard to scratch but if you do scratch it,it is murder to buff it out. Believe me take it from personal experience. A polish will just fill any scratches which may be a good enough remedy. Hopefully there won't be any scratches. smile

Last edited by pianobroker; 09/23/09 01:08 AM.

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Re: Cream to hand buff polyester finish...?
pianobroker #1273149 09/23/09 01:18 AM
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Hey, thanks!

I am not sure if it is Kawai's hard finish polyester or not...

The piano was built in 2005-2006 - not sure if that helps?

Assuming it isn't the hard finish polyester, what cream am I supposed to use to hand buff the fine scratches?

Thanks as always!





Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
Previous: Kawai CP205, Kawai CP207, Yamaha Synthesizers
Re: Cream to hand buff polyester finish...?
Pologuy #1273172 09/23/09 02:24 AM
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I'm not a Kawai dealer but I do know the RX grands are of the "hard finish" along with the newer artist uprts. I believe it states it on the bottom right hand corner of the music desk leaf. Kawaidon or an authorized Kawai dealer would be able to give you the lowdown on your piano! What mdl.Kawai is your piano.?

As for polishes 3M Hand glaze,Corys polish,Mcguires auto detail,Mohawk creme polish compound. None of these are highly abrasive so therefore will not eliminate any scratches.

Mezerna wax bar which comes in a couple grits is the only stuff that will buff out scratches in this "hard finish" hours later. frown

Last edited by pianobroker; 09/23/09 02:33 AM.

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Re: Cream to hand buff polyester finish...?
pianobroker #1273176 09/23/09 02:32 AM
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Hey, thanks!

It is a Kawai CP-205, Version 2.

It is their flagship digital grand piano.

smile



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Re: Cream to hand buff polyester finish...?
Pologuy #1273295 09/23/09 08:46 AM
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The "hard finish" that was mentioned is used on the music desk only on RX grands.

Since this is a digital grand the music desk is regular polyester.
Quote
I talked to the Kawai tech in my area and he said that he would most likely use a cream and hand buff the light scratches out at a cost of approx. $250.

Typically most finishing guys that do polyester work are going to use a machine buffer. The buffing machine is used with a dry buffing wheel with buffing compound. If scratches are deep they're sanded out first with progressive grits of sandpaper, ending with 2400 grit, buffed with a course buffing wheel then a fine buffing wheel.

While you can make some considerable improvements by hand you really need the muscle of a machine buffer to do it right.

Piano tech's, electronic tech's and finishers are 3 different trades. While there are some that may be experienced with two of those trades it's not the norm.



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Re: Cream to hand buff polyester finish...?
Glenn Grafton #1273532 09/23/09 02:14 PM
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OK... assuming that these scratches are very light and can not been seen without the use of a flashlight...

What cream(s) are used to hand buff the polyester finish?

Thanks as always!



Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
Previous: Kawai CP205, Kawai CP207, Yamaha Synthesizers
Re: Cream to hand buff polyester finish...?
Pologuy #1273536 09/23/09 02:23 PM
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There are polishing compounds available at auto shops for polishing cars with dark finishes. They can work.

Try it in a hidden place first to make sure it gives a sheen that matches the rest of the piano.


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Re: Cream to hand buff polyester finish...?
BDB #1273560 09/23/09 03:08 PM
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Originally Posted by BDB
There are polishing compounds available at auto shops for polishing cars with dark finishes. They can work.

Try it in a hidden place first to make sure it gives a sheen that matches the rest of the piano.


You being sarcastic? smile


Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
Previous: Kawai CP205, Kawai CP207, Yamaha Synthesizers
Re: Cream to hand buff polyester finish...?
Pologuy #1273571 09/23/09 03:32 PM
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If you lightly drag a fingernail across the scratch and you can feel it, it must be sanded then buffed with power buffer by a professional.

If you lightly drag a fingernail across the scratch and you cannot feel it, it likely can be hand polished away. Look for products sold in auto/motorcycle/boat supply housed designed to polish plastic windshields and motorcycle helmet face shields. Meguires, Mothers, etc. make these products.


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Re: Cream to hand buff polyester finish...?
Marty Flinn #1273592 09/23/09 04:11 PM
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Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
Previous: Kawai CP205, Kawai CP207, Yamaha Synthesizers
Re: Cream to hand buff polyester finish...?
Pologuy #1273622 09/23/09 04:55 PM
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Originally Posted by Pologuy
Originally Posted by BDB
There are polishing compounds available at auto shops for polishing cars with dark finishes. They can work.

Try it in a hidden place first to make sure it gives a sheen that matches the rest of the piano.


You being sarcastic? smile


Nope. One of the better furniture techs I know swears by Macgruders (sp?) automobile compound.

Re: Cream to hand buff polyester finish...?
BPrentice #1273642 09/23/09 05:40 PM
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Never heard of the finish polish you listed. Reading the description, it does refer to laquer finishes. Yours is not laguer, but polyester. Use what I recommended and you will be ok.


Co-Author of The Complete Idiot's Guide To Buying A Piano. A "must read" before you shop.
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Re: Cream to hand buff polyester finish...?
Marty Flinn #1273652 09/23/09 05:59 PM
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pologuy... when I called the local Steinway dealer questioning finish repair I was referred to automotive finish products...


Charles Walter model 1500 upright
Re: Cream to hand buff polyester finish...?
Marty Flinn #1273784 09/23/09 09:54 PM
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Originally Posted by Marty Flinn
Never heard of the finish polish you listed. Reading the description, it does refer to laquer finishes. Yours is not laguer, but polyester. Use what I recommended and you will be ok.
The last Fender piano I detailed was polyurethane acrylic. grin
We use the same urethane as Fender uses on their guitar finishes. Actually good stuff! Easier to "cut" than most polyester when one colorsands and buffs in the finishing stages. No hand polish will "cut" polyester so all these nonabrasive compounds/polish are the same.

3M products are geared for the automotive and boat industry.


www.pastperfectpiano.com
Largest selection in the USA
100+Steinway and M&H grands
Warehouse showroom Onsite Restoration
Preowned & Restored
Hailun dlr.818-255-3145
http://www.youtube.com/watch?v=_z8RvhXGKzY
http://www.youtube.com/watch?v=Voo0zumHGgE
Re: Cream to hand buff polyester finish...?
h2obuff #1273792 09/23/09 10:01 PM
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Originally Posted by h2obuff
pologuy... when I called the local Steinway dealer questioning finish repair I was referred to automotive finish products...
That's interesting!,The last hand rubbed satin finish car I had me thinks was supposed to be high gloss. Rain and snow and the elements can really do a number on a hand rubbed Steinway satin finish. grin

Last edited by pianobroker; 09/23/09 10:02 PM.

www.pastperfectpiano.com
Largest selection in the USA
100+Steinway and M&H grands
Warehouse showroom Onsite Restoration
Preowned & Restored
Hailun dlr.818-255-3145
http://www.youtube.com/watch?v=_z8RvhXGKzY
http://www.youtube.com/watch?v=Voo0zumHGgE
Re: Cream to hand buff polyester finish...?
Marty Flinn #1274572 09/24/09 10:44 PM
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Pig Snot Biker Wax
http://shop.pigsnot.com/product.sc?productId=24&categoryId=2

Honest to G-d, & Eagle Scout's Honor. Has a creamy consistency. Phenomenal stuff and not just for motorcycles.

Re: Cream to hand buff polyester finish...?
Amant #1274598 09/24/09 11:28 PM
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LMAO, well, beside sounding disgusting, lol... it's a wax, and not a cleaner or polish...

I did find this from a Technical Bulletin published by the Piano Technicians Guild, Inc.

•Polishing -- Satin polyester looks best when simply kept clean. Avoid gloss-producing polishes, which leave satin finishes looking shiny but scratched.

High-polish polyester finishes need only be kept clean to maintain their gloss. However, high-wear areas such as the music desk may eventually develop a hazy appearance caused by many fine scratches. These areas can be buffed back to a high gloss using a product designed to remove tiny scratches from fiberglass boats or plastic windows in convertible cars. Two such products are Meguiar's Mirror Glaze #17 Plastic Cleaner, and Meguiar's s Mirror Glaze #9 Swirl Remover--available from marine supply, auto-parts, or automotive paint supply stores. Your technician may carry special products for this purpose, or can recommend a local source.

As fate has it, I have both of these and use them on my cars... smile


Looking to purchase: Kawai MP(12), or Kawai VPC(2), or something Yamaha...
Current: Yamaha Synthesizer
Previous: Kawai CP205, Kawai CP207, Yamaha Synthesizers
Re: Cream to hand buff polyester finish...?
Pologuy #1274757 09/25/09 08:57 AM
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Who cares if the name (Pig Snot) is disgusting, it works great. The only thing that came close to it was Jubilee (now discontinued),

For "cleaner polishes" I use Mothers Plastic Polish.
http://www.properautocare.com/moplpo.html

It's a cleaner, polish & protectant. Takes away fine scratches and works great on polyurethane finishes. I use it on my car's clear plastic headlight lens, my Harley's windshield my glasses and other things around the household including the Bosie.

Re: Cream to hand buff polyester finish...?
Marty Flinn #1274777 09/25/09 09:47 AM
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Check this out. Has worked for me.

http://www.micromark.com/MICRO-MESH-FINISHING-KIT,7601.html



Regards,

Grotriman
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