3M Super 77 Adhesive for Sail & Canvas Construction Video demonstrates a few of the common uses of this spray adhesive. Use 3M Super 77 to keep fabrics in place while sewing, eliminating the chance for bubbles or uneven patches. Great for sewing sail corner patches, Sunbrella sacrificial sun covers, and for gluing fabric to walls or batting to cushion foam. Easy to use—just spray on both surfaces and assemble.