FOAM TACK GLUE - is specially formulated hi-tack, non-toxic, water-soluable, glue that will not damage foam. Foam Tack Glue dries clear and is flexible. Use it to adhere track, roadbed and foam. Use on foam, wood, cork, and Homasote board. NOTE: Adhesion on hard, smooth surfaces should be tested and may be improved by sanding surface. Working Time: 15 minutes. Foam Tack Glue may also be used as a contact cement. Will bond instantly! Great for Track-Bed! We will not ship during cold winter months to destinations with below freezing temperatures.