Pianotech

  • 1.  glue for brass damper blocks, again

    Posted 05-28-2021 15:28
    I am still not sure what kind of glue to use on my brass damper blocks. One person PVC-E glue, but is that not irreversible? Wood glue of some sort is always the preferred glue on a piano.  The next tech who looks at this piano might get quite techy when he discovers I have used a glue that he cannot get off!

    Will a regular (titebound) type glue work?

    h

    ------------------------------
    Hank Mooney
    San Francisco CA
    [Hank]
    ------------------------------


  • 2.  RE: glue for brass damper blocks, again

    Member
    Posted 05-29-2021 11:24
    Peter Grey posted shoe goo as being ideal.
    What ever glue you use,, maybe a thick CA glue, I would rub the brass on a piece of sandpaper to create a mechanical bond. Set a sheet of 80 grit on the bench and scratch it or rough the surface.
    Tighten up the pedal to align the damper assembly but still have spring pressure when you put the felts in place
    Once you have the barrels aligned with the note, wires all bent and looking the same distance from the string plane, You glue the felts on in the piano.

    ------------------------------
    Keith Roberts
    owner
    Hathaway Pines CA
    ------------------------------



  • 3.  RE: glue for brass damper blocks, again

    Registered Piano Technician
    Posted 05-29-2021 14:34
    Any water based adhesive is not going to adhere to brass. You need an acetone based (or similar) adhesive. Everything is reversible (even epoxy...just harder).

    Pwg

    ------------------------------
    Peter Grey
    Stratham NH
    603-686-2395
    pianodoctor57@gmail.com
    ------------------------------