I’m always on the hunt for tools to make appliqué easier. I came across this glue by Sewline which works well for appliqué AND a whole bunch of other things! I’ve started using it on English Paper Piecing and even the corners of my binding.
It’s the consistency of a glue stick. And the best part…water soluble so it easily washes out. The glue is blue as you apply it so you can see how much you’ve used.