What to use for glue

For gluing foam to plywood, you'll want to use the foamboard version of Liquid Nails. Liquid Nails comes in caulking tubes at your local hardware store. But just to warn you, you won't be removing it anytime soon once it dries, so make sure you know what you're doing ;]
 
The liquid nails is best, but you can also use yellow wood glue, white glue, and silicone to stick it to wood. The white and yellow don't work when sticking foam to foam though, takes it too long to dry. I like the silicone to stick littler pieces together to build mountains and hills because it's easier IMHO than using a caulking gun of liquid nails. I just use the cheapest clear RTV silicone from the autoparts store. Fred
 
Liquid nails

I reccomment Liquid nails over anything.

Hot glue will work, but its HUGE in the amound of work to use it to do more than a small area.

I reccommend 1 tube of liquid nails per layer of foam
 
The hot glue has to be the lo temp kind or you will get holes in your insulation. I used the liquid nails like the way it sets up but it can be a little challenging to remove a section for a stream or lake,if you can plan were thats going to be and not glue that area you would be much better off. Pat
 
Re: thanks guys

I guess I'll go with the carpenters glue. I'm building a fair sized layout so I'll buy a gallon and put it on with a cheap paint roller. Thank you all for responding with your views.
 
Tucker. Something to think about. Yellow carpenters glue will dry leaving a yellow color so if you spill any on the sides, you will have a yellow stain.

Robin and I always use Elmers white glue and providing you don't go overboard on the usage, it dries clear.
 
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