Which Type Glue?

[3Dsigns]

I need to glue the grey 4.5'x2.5' latex-painted 1'' HDU panel to the face of the larger 6x4 latex-painted sign. I think gorilla glue would hold very well, but am afraid it might expand too much and I have known liquid nails to get hard and detach. Would you use silicone? Screwing it down is not an option. Thanks

 

[eahicks]

I would sand off the paint where the oval face goes, and use Silicone adhesive or Weld on

 

[3Dsigns]

Weldon; is that epoxy?

 

[Gino]

Are both substrates HDU ?? In most cases you do not wanna glue a painted surface to another painted surface.

As mentioned, sand all the paint off of the areas to be glued and I'd use gorilla glue and weight the livin' sh!t out of it for 2 days. Then cut away any glue which might've squeezed out.

 

[Martin Denton]

Why not use some dowel rod for invisible fixings between the 2 at 1 inch thick the fixings will never be seen. You can get little copper pins that you put into holes on one piece then position it the pins leave marks for drilling the other holes and you get perfect alignment and no possible movement

 

[Billct2]

Single face sign? Screw from the back with some lexel for good measure.
As has been said, best to leave unpainted when gluing.

 

[Cross Signs]

The "clear" Gorilla glue doesn't foam out like the other, but holds just as well.

 

[Sandman]

I would remove a few strips of paint from both pieces so they match up and use epoxy. Gorilla glue, Duna Bond, PB Bond are great for edge glueing before machining, but to deal with squeeze out or the chance of lifting the piece thus causing a disaster is not worth the risk in my book unless you are willing to start over.

 

[ams]

Dowel studs are great, I've used those before.