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zip track help
Posted by: paulg (
Date: January 08, 2009 09:40PM

I have a customer that wants zip tracks for changable letters on aluma board material. The catch is he wants it to be double sided and the material is only 1/4". What suggestions would you have to mount the tracks? Adheisives, pop ribets, screws, etc. Where in the middle of this project right now any info would be greatly appreciated ASAP.

Re: zip track help
Posted by: geraldi (
Date: January 11, 2009 01:45PM

On 1/4 inch material your only choice is double back tape or other adhesive. This won't make a strong assembly. It will tend to bow in the middle. I would use thicker material or use 2 pieces of material, one for each side with something between them to give it strength. It would be stronger, more ridged, and you can use screws. We usually glue the strips on and then use screws or rivets for security. But we usually use plexiglas to build redader boards as they are usually lit. Good luck.

Re: zip track help
Posted by: M4MarketingMentor (
Date: January 11, 2009 02:59PM

Maybe too late now, but weld-on glue to white acrylic is the best for changeable letters because it allows no gaps along the length and letters stay put because they're "both" plastics.

Always remember, plastics vs. metals "always" cause a major expansion and shrinking problem between the two composites.

If you must use the alum product; after careful aligning, attempt frequent fastening every 4-6 inches, plus a clear 100% silicone adhesive that may allow some expansion. Ques.?? Is this 1/4 alum backed-up with another strong substrate ? or is that it ?

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