You may need to glue two pieces of foam together to create your custom cushion. These steps will show you how to do this easily. The first section covers how to bond a smaller piece of foam to a larger piece of foam. The second section will explain how to bond two larger peices of foam together.
Supplies Needed to Complete This Task
You will need the two pieces of cut-to-size cushion foam to be glued and spray adhesive.
Preparation
Spray adhesive residue may land on your work surface during this process. While most surfaces should be able to be cleaned, some surfaces may be easier to clean than others. If you are concerned about damage to your work surface, cover it with newspaper, a drop cloth or tarps for protection.
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.
Bonding the Foam Together
Carefully align the smaller piece with the larger, as shown in the center picture. Once they are in place, press the two pieces together, starting at one end to ensure the two sections will be flush. Apply firm pressure without squeezing the cushion, so the surfaces of both pieces meet and bond evenly, as shown to the lower right. Hold for a few seconds as you press along the sides of the foam. Give the seat cushions about five minutes to dry before continuing on to the next step.
Bonding Larger Sections of Foam Together
Some cushions that require gluing may be too large to squeeze together, like single seating sections of sofa foam or a chaise longue cushion. For this reason, there is a different method for larger sections.
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.
Bonding the Foam Together
After aligning the two sections of foam, push them together, but instead of holding the two sections together, pinch the two edges together down the length of the bond as shown in the center picture. Pinch as much foam as you can without tearing into the cushion with your fingers, as shown to the lower right. Hold firmly for a few seconds before moving down the edge. When you have completed the top side and the two edges, carefully flip the cushion over and pinch the bottom edge together as well. It is suggested to have a second person help you turn the cushion over to keep the sections from pulling apart. When finished pinching all the way around the bonded edge, give the foam five minutes to dry.
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