Ian, I use a thin film of "white" glue on the sandpaper AND the surface you are gluing to.. Let the glue dry then use your monocoat iron to stick it down. Just place the Iron down then pick it up again to change position, don't try to slide the iron as tou will sand the shiny side of your iron off LOL.

I mark the outline location of the walkway with a #2 pencil and scuff the area so the glue has a better surface to stick to.

Clear as Mud?? LOl