Combining Fabric Weaves and Weights
Use seam finishes appropriate to each fabric. That may mean two different seam finishes on the same seam. Here is an example with a orange georgette and a multicolored loose weave. The fabric is too lightweight for binding, so I used a clean-edge finish. The loose weave is too irregular to turn under, and it frays easily, so I used a Hong Kong finish.
Sew the georgette seam allowance with a clean-edge finish (left). Bind the loose-weave seam allowance with a Hong Kong finish (right).