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fixing a panel to steel frame

Discussion in 'Installation Equipment & Techniques' started by 2 see signz, Oct 29, 2012.

  1. 2 see signz

    2 see signz Member

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    Drove past a few signs today that are composite panel fixed to a 2" box steel frame, i can see that theres no fold on the edges or screws , how would this be fixed to it?
    vhb tape and epoxy?
     
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  2. CanuckSigns

    CanuckSigns Very Active Member

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    depends, i try to always use some type of mechanical fastner, I learned my lesson the hard way!

    it may use some type of cleat on the back, or possibly a shallow pan around the sign face with small screws along the returns? without a pic it's hard to say.
     
  3. Moze

    Moze Very Active Member

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    One of the most common ways is to VHB-tape aluminum angle to the ACM panels. The angle can be drilled or through-bolted to the sign frame. It's also not uncommon to build slip-over cabinets that simply slip over the sign frame and don't require actual fasteners (depending on the design, of course).
     
  4. Mosh

    Mosh Major Contributor

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    VHB or counter sunk rivet or screw. I counter sink rivets then bondo, just like doing auto body work. use a bevet bit. Make for a clean look.
     
  5. 2 see signz

    2 see signz Member

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    ill drop past tonight and take a pic. from what i could see, there was no evidence of fixings, and being double sided, surely tape on its own would not be standard practice.
    its a full laminated print on alucabond (composite aluminum) so i dont think they would of used bondo on this one.
     
  6. Billct2

    Billct2 Major Contributor

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    probably VHB or Glue or both
     
  7. J Hill Designs

    J Hill Designs Major Contributor

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    they could have screwed/bondoed before putting on the print...

    but yeah. epoxy and/or vhb
     
  8. 2 see signz

    2 see signz Member

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    heres two pics i took

    would epoxy be that strong to rely on?
     

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    Last edited: Oct 30, 2012
  9. MikePro

    MikePro Major Contributor

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    VHB tape. I wouldn't bother with the epoxy.
     
  10. TwoNine

    TwoNine Active Member

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    That's VHB IMO. The space between the post and the panel is equal (and similar thickness to VHB) on both sides and all the way up and down as far as I can tell. With epoxy or adhesives you'd probably see some variation in thickness and probably a little that came out when pressing the panels (even if it was wiped up - you'd see it right at the edge of the post and panel.)
     
  11. Moze

    Moze Very Active Member

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    VHB...that's all that would be required and what is typically used for signs like that.
     
  12. Mosh

    Mosh Major Contributor

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    VHB tape for sure. I was at a trade show and the 3M rep had two peices of aluminum held together with VHB. He put them in a vice and cranked on them. The aluminum broke but the joint held with the VHB stayed together. Try and remove some and you will be a believer!!!!

    Just let it set up 24 hours and it is there for good!
     
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