It is a bit stiffer than steam a seam, its must be sewn once fused. One word of caution with Heat and Bond lite... if you use it on some batiks it will leave a "stain"that shows through to the right side of the fabric. Its a dark oil like mark, that no matter what you use it will NOT come out. I use Heat and bond lite to temporarily hold a large piece of a quilt in place till I could quilt it.... The 1/2 in strip I used ... once I ironed the top was permanently "stained" in a 1/2 inch straight line where I had used the Heat and Bond Lite.
I have never had this experience with steam a seam. Personally I think the bond of steam a seam lite 2 is stronger than Heat and Bond lite.