Keytops

[Gregory Torres]

Gilreath & all,

I will try this PVC-E next chance I get. BTW, I guess I should have specified how
I have buffed an occasional keytop.. (once every couple years...) With an
automotive type circular buffer and wool pad at about 1200-1400 RPM using
automotive type buffing compound. Works great for me.

Thanks,

Greg Torres

Gilreath wrote:

> Wim, Greg, et al,
>
> A few thoughts.  I have found the PVC-E adhesive (which has been discussed on
> the list before) to work exceptionally well for gluing on both ivory and sets
> of conventional keytops.  It's easy to work with, doesn't "eat into" the
> plastic tops, has good gap-filling properties and remains slightly flexible so
> the top doesn't pop off of the key when subjected to climatic changes.
>
> As to buffing, a standard buffer or bench grinder fitted with a buffing wheel
> is way too fast for buffing plastic tops.  I haven't worked with the Vagias
> tops but have had great results buffing other tops with white polishing
> compound and a slow speed buffing wheel.
>
> Let us know how it all looks when you get it going, Jim.
>
> Allan
>
> Allan L. Gilreath, RPT
> Gilreath Piano & Organ Co.
> Calhoun, GA USA
> Gilreath@aol.com
>
> In a message dated 98-05-21 20:45:28 EDT, you write:
>
> << Willem,
>
>  I think the problem is the solvents in the 3M spray adhesive. It is a lot
> stronger
>  chemically than rubber cement, and it will eat into the plastic although you
> can
>  still use naphtha to clean it when it is still fresh. I had a similar
> experience.
>  I don't believe it is the keytops themselves because when I used the latex
> based
>  adhesives I have never had this problem.
>
>  And you can buff keytops if they are acrylic plastic. Only the white abs top
> from
>  Vagias can be buffed. The others (Vagias) are made of a softer plastic. The
> molded
>  tops from American Supply can also be buffed.
>  It is handy to be able to buff a scratch out especially when you happen to
>  accidentally scratch one when installing. JMHO
>
>  Regards,
>  Greg Torres
>   >>