Instead, do this: abut the 2 edges of the fusible web paper. This way when you fuse, you don’t get glue on the paper underneath. If you overlap the papers, you get glue on the paper. Your iron picks up the glue on the paper when you use it later and then transfers the glue to your beautiful quilt top. The paper that comes with the fusible web (release paper) is so useful. You can fuse fabric to release paper over and over again and it always releases the fabric.
So save the release paper that comes with fusible web. By placing the release paper on your quilt top, you protect the iron from fabric shapes that are place upside down on the quilt. Remember: protect your quilts from filthy irons and don’t tempt them with glue on the paper.