Kantenband & Formband fusible tapes – key differences

Experienced sewists might already know this, but these nuances of edge stabilization were a revelation for me 🙃

So, Formband and Kantenband are types of fusible interfacing with a standard 12mm width, and both are applied to dry fabric. But what is the difference between them?

Kantenband (fusible edge tape) stabilizes raw edges thanks to its straight-grain threads. It is used for straight or bias edges that must not stretch during garment wear.

In principle, if you cannot buy Kantenband, you can cut it yourself from regular thin fusible interfacing—provided you cut strictly along the straight grain.

Using Kantenband is especially relevant for unstable, fraying, or shifting fabrics, as well as for reinforcing side or shoulder seams and zipper seam allowances.

Formband is a bias tape with an elastic chain stitch, made from thin fusible interfacing. It is used to stabilize curved or bias edges while still allowing the fabric some "maneuverability." In other words, when stabilizing a neckline or armscye, Formband provides soft stabilization without completely removing the material's ability to stretch.

When cutting Formband yourself, remember that it must be cut at a 45-degree angle (on the bias), just like regular bias tape 😉