What to use to glue tuner window into aluminum faceplate?

Discussion in 'DIY' started by Scott75s1974, Nov 10, 2018.

  1. Scott75s1974

    Scott75s1974 Active Member

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    I have a Scott R75s (~1974) and the acrylic window is glued into the faceplate, which is a heavy aluminum extrusion.

    The original glue looks like yellowish hotmelt. I'm sure it's something else, but it held the bead shape like hotmelt glue and peels off the acrylic easily. It definitely did not do anything solvent like to the acrylic window.

    I tried using hotmelt, but the faceplate is so massive, it cools too quickly to stick for long. I have some Barges contact cement I could try. Any other suggestions?
     

     

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  2. gadget73

    gadget73 junk junkie Subscriber

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    clear silicone maybe.
     
  3. Watthour

    Watthour Electron Rancher - JS3600

    Very likely it is a contact adhesive, like Armstrong 520.
     
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  4. KingBubba

    KingBubba "Too Much Stuff" Subscriber

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    I used Alenne's Tacky Glue on my Pioneer. It is water soluble so getting it off would be no trouble.
     
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  5. tyeeslayer

    tyeeslayer Super Member

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    3M double sided tape.
     
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  6. KingBubba

    KingBubba "Too Much Stuff" Subscriber

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    The issue to be aware of is the possibility that you ever have to remove a broken glass in the future. Gorilla glue is definitely out.
     
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  7. MCS Guy

    MCS Guy The MCS hoarder Subscriber

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    Pretty much what I have used. Usually can find tacky glue in crafting stores.
     
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  8. gadget73

    gadget73 junk junkie Subscriber

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    very true. Silicone will let go without much fuss. The water based glues should too, provided you get them wet first.
     
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  9. fernarias

    fernarias Super Member

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    That's what I've been using since that's what I'm finding in some of these. Anything that does not contain petroleum, that would out gas and ruin the painted silk screen, and easily removable should be fine.
     
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  10. triode17

    triode17 Super Member

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    I had to glue a glass meter window on my Hewlett-Packard meter. I used epoxy spread carefully around the edges. Its on permanently.
     
  11. audio80

    audio80 New Member

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    be careful if you use silicone,some strong silicone vapour will discolor the clear plastic,almost like the vapours are melting it.I tried that on an old car amp that had analog guageswith clear plastic covers. the silicon fogged up the plastic real good.I would personally use a little bit of hot melt.as its not permanent and be easily removed with alochol.
     

     

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  12. DEAFASABAT

    DEAFASABAT Active Member

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    Use electronics grade silicone RTV. The "silicone vapor" is outgassing acetic acid, potentially corrosive to many materials. Electronics grade is more benign.
     
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  13. Scott75s1974

    Scott75s1974 Active Member

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    Thanks for all the replies. On closer examination, I decided the old glue really was hot melt. So, instead of trying to lay a bed of glue on the faceplate and pushing the acrylic into it before it hardened... I had the brilliant insight of reproducing what they did. Mount the face plate and run a bead along the top and bottom like they did.

    Unsurprisingly, this worked. Sorry for the noise.
     
  14. EastPoint

    EastPoint Factory Code No. 4200 Subscriber

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    I just use standard Elmer’s white glue for this. Never had any issues.
     

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