[DaveintheGrave]

I use Liquid Nails Heavy Duty Construction Adhesive with very good results. Some of my stuff is going on 6 years and holding like new.

Yep!! I've got styrofoam projects I built 6 years ago still holding strong with this same stuff!!

 

[DaveintheGrave]

I use the Liquid Nails Construction Adhesive on the blue styrofoam with no problems.
I think the pink is made from the the same material as the blue, just a different color.
Pink foam for girls, blue foam for boys!!