Foam glue
Cut the fusible interfacing material to the same shape as the fabric. Lay the foam piece on a sheet of wax paper. Squirt foam glue onto the foam. Use the foam paintbrush to smooth out the glue, especially along the edges of the foam. Place the fabric on top of the foam, pattern side up. Adjust it to fit correctly over the foam. Run your hand over it to smooth out any bumps. Applying Glue to a Piece of Foam. Stack the two sections of cushion foam that need to be glued together on top of each other, with the two sides that will be adhered together facing out, as shown to the lower left. Liberally apply adhesive to both pieces and wait about 10 seconds for the glue to become tacky. 1 Secure findings to jewelry the normal way, then put a tiny dab of glue on it (usually E6000). 2  Rhinestones glued to t-shirts never last as long as you hope they will. 3  You can use fabric glue and settle for a 3 month t-shirt, or give in and buy a rhinestone applier with metal backings. How to Glue Foam Together. To create your custom-size cushion, you may need to glue two pieces of foam together. This is a relatively easy task and these steps will show you how to do it easily. You will need the sections of cut-to-size cushion foam that will be glued together and spray adhesive. What I use them for: paper to paper; fabric to paper (apply glue to paper, and press fabric onto glue—then quit handling it until it’s dry, or you’ll make a mess); paper to metal (apply liberally to metal, then smooth paper on). Tacky Glue. This is the stuff in the gold plastic squeeze bottle with the white tip.
http://www.ehow.com/how_6940110_glue-fabric-foam.html http://www.thefoamfactory.com/seatcushion/diy_gluing.html http://spazzticcrafts.com/glue-guide.php http://www.foambymail.com/GLUE.html http://gomakesomething.com/ht/thebasics/whatglue/
what kind of glue can you use to apply fabric to foam board