We are trying to get into letter board assembly and simply put we are struggling to figure out how to do this. The one job we have right now is the tracks on ACM. The tracks are the Gemini Tracks from Grimco which recommend using WELD-ON 3 or 4. This is where the struggle is because no matter how I coat the panel and the tracks with the WELD-ON 3 they just pop off when I test them after curing. My thought is there is something I am missing because outside of just riveting it together which is something we want to avoid with this particular job due to the client wanting a "Clean" look I am kind of at a loss at what I am doing wrong. Any and all advice would is appreciated.
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Need Help Letter Board Assembly
- Thread starter D4rkmap
- Start date
weyandsign
New Member
WELD-ON is for bonding acrylic to acrylic or some other plastic. Not for bonding to aluminum. I would recommend using stainless painted screws, or painted rivets. You could also try LEXEL clear adhesive, but I would still use at least a few mechanical fasteners just in case.
Johnny Best
Active Member
Yea your using that on ACM. It is made for plastic to plactic bonding. Drill holes and use pop rivets, paint the rivets to match background for clean look.
pcbassembly
New Member
If you're planning to upgrade from static letter boards to something with LEDs or backlighting, it’s worth thinking about the electronics early. We’ve seen a lot of signage issues come from poorly integrated power or control boards.
If you're exploring that route, feel free to check out our custom PCB assemblies — we've supported several retail and industrial signage projects.
For simple indoor setups, PVC on dibond works great. Gemini systems are a solid choice too.
— Harshit
A2ZEMS Electronics | USA-Based PCB Assembly
If you're exploring that route, feel free to check out our custom PCB assemblies — we've supported several retail and industrial signage projects.
For simple indoor setups, PVC on dibond works great. Gemini systems are a solid choice too.
— Harshit
A2ZEMS Electronics | USA-Based PCB Assembly
visual800
Active Member
I do a good bit of these on acm and its a pita with screws so I started vhb taping the tracks on. tape about 4" and leave 1" blamk for water runoff and so on. Once it down I paint the front white as I use black vhb just on the strip where the vhb is, sounds difficult but its a time saver!