Reply to "Foam landscape - help"

I just finished a major landscaping project involving hillsides, a bridge, and a river.  Gilly's right.  You need to remove the film and use Liquid Nails or Loctite PL 300 Foam adhesive.  I've used spackle to make the slope.  I've also used the Great Stuff foam and low-loft quilt batting to make a larger hillside.  There's a YouTube video by a member here, CJ Ambrosi, you should check out.   Both methods work fine.

George