The Applique paper is unique because it is made up of half soluble and half non-soluble fibres. Any remnants of the stabilizer inside the appliqué will wash out in the laundry. So it does not need to removed after applique is complete but can be left in the quilt or project giving stability until laundering.
We currently offer precut hexies in three sizes cut from Applique paper for the easiest method available for English Paper Pieced Hexagons. Fuse to wrong side of fabric, cut out roughly. Glue or tack edges over. Sew hexies together by hand or machine and use as desired. Leave paper as a stabiliser or wash to soften and dissolve.