This is topic bonding aluminum to aluminum in forum Letterhead/Pinstriper Talk at The Letterville BullBoard.


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Posted by Mark Perkins (Member # 296) on :
 
I'm bidding on a 4x8 pylon sign, double faced. The specs call for a 1/8th inch mill finish aluminum sheet for the background panel, there will be a cut out logo using 1/8th" aluminum with a factory baked enamel finish that will attach to the front. Specs call for no visible fasteners or welds. What would work the best to bond the two sheets together? The fabricator I'm working with said he's used Liquid Nails on similar projects. This sign needs to handle 110 mph winds.
 
Posted by Glenn Taylor (Member # 162) on :
 
I've been using Lords Adhesives. I've got two out there that survived Hurricane Fran and Floyd.
 
Posted by Bryan Quebodeaux (Member # 48) on :
 
Hey Mark,
You can use Lord Adhesive #406/19 for your project with excellent results. You will need an applicator gun, you can use ours if you need. Good Luck!
 
Posted by Mike Pipes (Member # 1573) on :
 
Lord's Fusor line would be a good bet, they have some structural stuff available.
 
Posted by Bill Lynch (Member # 3815) on :
 
I also use Lord's combined with VHB tape to hold it till the adhesive sets.
 
Posted by Mark Matyjakowski (Member # 294) on :
 
could you have studs welded to the back of the letters?
 
Posted by Raymond Chapman (Member # 361) on :
 
We also use Lords 406/19. Our local community college has directional signs in the form of cubes - 8' x 4' on all sides. We used Lords since I didn't want any hardware showing. They have been up five years and nothing has moved in that time.

This morning we are installing another one - two 8'x 4' aluminum panels over an angle frame and Lords was the choice again for holding the panels on.

Just good stuff.
 
Posted by Bill Diaz (Member # 2549) on :
 
dido on the Lord's -- working on 1 right now almost identical to the one you have specked.

I didn't know it until last winter when we bought our new car. We had it about 2 weeks and somebody backed into 1 of the doors at our shop. I told the body shops when I went in to get estimates, that I didn't want any bondo job, I wanted a new door. The first shop I went to informed me that all I needed was a new skin and that body skins are glued on and have been for some time. Wow -- were have I been.

I also have a friend who owns a glass business who told me most modern store front glass frames are glued into place. He really believes in glue and suggested I do too.
 
Posted by Patrick Whatley (Member # 2008) on :
 
Liquid nails? On aluminum? I thought expansion and contraction would snap the aluminum right off the Liquid Nails.
 
Posted by Jefferson Howery (Member # 3497) on :
 
In all my years, nothing works better than this...

http://products3.3m.com/catalog/us/en001/auto_marine_aero/marine/node_GSWWSBSW85be/root_GST1T4S9TCgv/vroot_GS4JK4Y166ge/gvel_QH8HT14PGTgl/theme_us_marine_3_0/command_AbcPageHandler/outp ut_html
 
Posted by Mark Perkins (Member # 296) on :
 
Thanks for the info guys, majority rules so I'll use the Lord's
 


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