glueing hammer felts

[Oleg Isaac]

The metal clamps sold by Renner and others are for holding the hammer
felts (gluing), espetially on very old pianos (felt or leather)
The pression is enouth to clamp the felt with a little tension - not
much anyway. having a few clamps as that is very useful for all kind of
little work too. pression is 10 kpds env.

Hot glue semms to be good for that use, but the hammer re-felters use it
melted with a white powder to otain the same glue than for the ivories.
(The white thing is "blanc d'espagne" - don't know the name in english)

regards