I've read at least one post on this board about satin stitches perforating the applique to the extent it detaches. Not sure why that's so, but it has caused me to stop doing it that way.
How about straight stitch applique? Turn the edges under (several ways possible) and just top-stitch around the applique edge. Use 40-wght thread if you want the stitches to show up like topstitching. Very durable, in my experience.
hugs,
Charlotte