Stabilizers provide structure for projects like tote bags and crafts, whereas interfacing is generally used to provide more body in apparel projects like shirt collars and facings. The heavier the weight, the more body or structure it provides.
Interfacing and stabilizers are available in sew-in and fusible varieties
Interfacing is what gives a project that professional look. It smooths out the bumps and offers a very crisp finished look to the final project. Though completely hidden from view, one can always tell when the proper interfacing was skipped or not used at all.
Bags are a great place to learn about new interfacings.
By following the patterns interfacing suggestions, one sometimes gets to use interfacings that are new to you. While creating the bag and seeing the stylish final results with the correct interfacing
French fuse is also best for silks and other light weight fabrics. People who make T-shirt quilts like this interfacing because it is 60” wide.
Pellon’s Shape Flex. It is a woven, iron-on interfacing that gives body to the fabric yet still gives it the flexibility and ease of use.
Woven vs Non Woven
A woven interfacing should be treated like a woven fabric. Keep the grainline running the same direction as the fabric. With a non-woven interfacing there is no grainline. It can be played out in any direction that works. Fusible vs Sew in Interfacing
Fusible Interfacing needs a steam iron and a wet press cloth to get the best fuse to the fabric. Fusible interfacing is also good for fabrics that fray. Once pressed let the piece cool before moving it. Sew-in interfacing provides body but somewhat less crispness than fusibles. It is also used when the fabric is so delicate that ironing it might damage the surface.