Keytop Adhesives
By Jon Page
To glue the _hollow_ sharps, white glue or carpenter's glue is poured to 1/3 (or so) of the hollow. The sharp keytop is then secured to the keystick with masking tape so the glue will flow down and secure the sharp in place. Allow it to dry overnight.
Gluing plastic tops to naturals: PVC-E adhesive is best. This gives a flexible bond allowing expansion and contraction of the wood. If you ever noticed some plastic tops which are cracked, it is due to the wrong adhesive. An adhesive which melts the plastic to the wood doesn't allow flexing, because plastic doesn't react to humidity changes the way wood does. And if you get a little PVC-E on the surface, just wipe it off -- no damage.
Note: This is one of a very few places in a piano where PVC-E is used. Although it is a great adhesive for gluing felt to wood or metal, I use it _only_ where a _flexible_ bond is needed. If you ever have had the task of removing PCV-E, you know what I mean. Nothing beats hide glue (hot or cold) to glue felt, and it can be removed in a fraction of the time.
Jon Page
Harwich Port, Cape Cod, Mass.
jpage@capecod.net |
(Message sent Tue 28 Jan 1997, 13:25:29 GMT, from time zone GMT-0500.) |
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