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THIS is a question right up MY alley having spent the summer rebuilding my layout which I moved in pieces from NJ to NC. Much of my basement NJ layout was still in the planning stage and therefore never glued down. I was PLANNING on using the Elmers glue and had a lot of it. So, in NC I began with the glue just to save money. Since it was old it was a bit thinker than usual which was actually a plus BUT it still took too long to totally dry. A bit of homework told me that since it is sandwiched between layers of this nonbreathable foam it might never truly dry for a VERY long time. I had everything I could find weighing it down for at least 48 hours.

WATCHING GLUE DRY!glue rr

THEN I purchased Loctite PL300 for foam. I read many reviews of Loctite vs Liquid Nails with both being good but Loctite winning in the end. It was easier to use, bonded quickly, and cured quickly compared to the Elmers, allowing me to move onto the next area in a timelier fashion.

Also, I had used Elmers a number of years ago on a layout that had to be moved into town for the Holiday Train show every November and back home in Jan where it was stored in a detached garage. Sections started coming apart! I don't THINK that would happen on a permanent layout but who knows. It did allow me to take apart my old basement layout though without too much of a mess.

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Last edited by Mikki

Elmer's school glue is pretty useless stuff. Glue All is the Elmer's you want, but its not going to have much impact on foam board.  You can use it to glue stuff *to* the foamboard, but I would not use it to glue the board down.  Its going to sit on the surface and merely tack it to the plywood. Use Liquid nails, or better yet, foamboard adhesive. The other thing you can use, if you have enough weights to prevent it from lifting, is great stuff spray foam.

Last edited by Boilermaker1
@Mikki posted:
THEN I purchased Loctite PL300 for foam. I read many reviews of Loctite vs Liquid Nails with both being good but Loctite winning in the end. It was easier to use, bonded quickly, and cured quickly compared to the Elmers, allowing me to move onto the next area in a timelier fashion.

I used Locktite PL3 on the fascia of my layout, and I can tell you that's never going to come off without a fight!

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