I use a glue gun. You do have to careful that you don't get the glue too hot or it will melt into the foam. The nice thing about this method is,,, it holds your track secure but you can still pull it loose without damaging it if you want to change something. Also, the hot glue when dry will peel right off the roadbed of the Unitrack and it looks like new. With a little practice you can get to where you can glue it down without melting the foam.