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Best glue for brass-to wood

  • 1.  Best glue for brass-to wood

    Posted 05-26-2021 12:26
    I have acquired some brass damper blocks for an upright piano.

    They are very nifty!

    But how do I glue the dampers themselves to BRASS?

    h

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    Hank Mooney
    San Francisco CA
    [Hank]
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  • 2.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 12:55

    Try PVC-e glue.




    Original Message


  • 3.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 12:56

    They must be very heavy.  Do you really want to use them?




    Original Message


  • 4.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 13:13

    The mass helps the damping, and they don't need to be lifted. The rail takes the weight.??




    Original Message


  • 5.  RE: Best glue for brass-to wood

    Member
    Posted 05-27-2021 12:10
    I assume they are used only for bass damper section?--



    Alden L. Jack
    Associate Member, Piano Technicians Guild
    Phone: 435.760.3974
    Noteworthy piano tuning and repair.



    Original Message


  • 6.  RE: Best glue for brass-to wood

    Posted 05-26-2021 13:16
    I've seen these brass damper barrels used on the M line Sauters.  The added mass creates amazing dampening function. 



    Original Message


  • 7.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 13:37

    At some point, Del Fandrich talked about the different damping from mass or from spring tension. I can't remember just when.




    Original Message


  • 8.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 15:22
    I think Del was referring to a grand action though.  He was advocating putting weight in the damper head over spring tension on the underlever.

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    David Love RPT
    www.davidlovepianos.com
    davidlovepianos@comcast.net
    415 407 8320
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    Original Message


  • 9.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 15:32
    Google using burnt shellac. Traditionally used for felt on pates.

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    Larry Messerly, RPT
    Bringing Harmony to Homes
    www.lacrossepianotuning.com
    ljmesserly@gmail.com
    928-899-7292
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    Original Message


  • 10.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 15:41

    That sounds familiar, but I thought I also remembered him talking about upright damper blocks. He replaced some brass ones with wood, and the damping got worse?

    But my memory can be AWOL these days.




    Original Message


  • 11.  RE: Best glue for brass-to wood

    Posted 05-26-2021 16:57
    Hi,

    It was in the middle of (yet another) long discussion about rebuilding techniques for various grands; and, while the specific system was older Chickering, there was also comment on S&S.

    I've added brass to damper heads on both brands with good success. YMMV.

    Kind regards.

    Horace







      Original Message


    Original Message


  • 12.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 23:58

    Glad that SOMEONE can remember!

    tks.




    Original Message


  • 13.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-26-2021 18:35
    Del has designed upright damper systems that use brass barrels instead of wood.

    Alan

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    Alan Eder, RPT
    Herb Alpert School of Music
    California Institute of the Arts
    Valencia, CA
    661.904.6483
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    Original Message


  • 14.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-27-2021 00:47

    David, 

    Definitely uprights. It was demonstrated on my piano during a chapter technical. 

    Mass matters. 



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    David Stocker, RPT
    PNWRVP
    Olympia WA
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    Original Message


  • 15.  RE: Best glue for brass-to wood

    Member
    Posted 05-27-2021 11:31
    What ever glue you use,
    scratching the surface increases the surface area and creates a mechanical bond

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    Keith Roberts
    owner
    Hathaway Pines CA
    209-770-4312
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    Original Message


  • 16.  RE: Best glue for brass-to wood

    Registered Piano Technician
    Posted 05-28-2021 07:48
    "Shoe Goo" is ideal for this. Very strong, slightly flexible. Unfortunately also very smelly (but all the well performing stuff smells bad, right?)

    I think I bought it at Target. Amazon I'm sure has it.

    Pwg

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