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#2909312 11/07/19 08:14 PM
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I want to replace the key tops of my piano and I’ve seen many videos with PVC-E glue mentioned but I can’t find anything like that in Europe. Does anyone know what similar glue I can use and where I can order it from?


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I use neoprene contact cement for acrylic keytops.
I also found mentions of some PVC-E glues in Piano Inside Out that I'd like to give a shot sometime. In France, I could buy the Aleene’s Tacky Glue original formula, Quick dry and Fast grab in some domestic art shops. On Amazon, we can import it from UK, so far I know.


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You could also try Evacon-R adhesive.

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Thanks for all the answers! I see that the Pattex brand is widespread (called Moment in Bulgaria and can be purchased everywhere) and the glue is actually a neoprene contact glue (polychloropren).


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My preferred adhesive is Roo Glue manufactured in Australia. It's better than PVC-E. Contact cement lasts about 15 to 20 years and then starts to fail. It also discolors considerably.


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PVC-E is not contact cement.


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Sorry, I was not very clear with my response. I was commenting on the two different adhesives being discussed.

I've used PVC-E for decades and it works quite well for plastic key tops. When Pianotek switched to Roo Glue, I bought some and tested it against PVC-E and found it had a stronger bond. I also found the gel consistency of Roo Glue to be easer to work with. It is now my adhesive of choice.


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Originally Posted by Bill McKaig,RPT
My preferred adhesive is Roo Glue manufactured in Australia. It's better than PVC-E. Contact cement lasts about 15 to 20 years and then starts to fail. It also discolors considerably.


Which particular Roo Glue? I looked on their website, and they make quite a lot of adhesives...! smile


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I guess it is perfect if the peeled keyboard is dissolved in acetone to make an adhesive.


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Acetone will dissolve new keytops, so any smear will mar them. PVC-E is better. It just washes off before it sets, and peels off afterwards,


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The Roo Glue is labeled Roo Clear, Melamine and vinyl adhesive.


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I asked a local Bulgarian technician and he told me he uses PVA glue for glueing key tops. What do you think about that?

Last edited by CyberGene; 11/14/19 02:35 PM.

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I think it'd be worth trying an experiment with a spare key covering, to see what happens.....

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I wouldn't think PVA would work. As David said do a test and see. I never use a new adhesive without testing it first. For key tops, I like to see either the key top break before releasing, or wood coming up with the key top. If the top comes off and leaves all of the adhesive on the wood, that would show poor adhesion.


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Originally Posted by Bill McKaig,RPT
The Roo Glue is labeled Roo Clear, Melamine and vinyl adhesive.


Many thanks Bill! smile


Started work at the Blüthner piano re-building workshop in Perivale, UK, in 1989. Self employed since 2000. Learning something new about pianos every day... smile

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