Pellon SF101 Shape-Flex Cotton Woven Fusible Interfacing 20" x 10 yards Black

The Pellon SF101 Shape-Flex Cotton Woven Fusible Interfacing — 20" x 10 yards Bolt in Black is the black colorway of Pellon’s most popular woven fusible interfacing. Shape-Flex is a woven cotton interfacing that moves and drapes with fabric rather than stiffening it, making it ideal for garments, bag flaps, quilt block appliques, and projects where the fabric needs to maintain its natural hand after interfacing.

Product Details

• Color: Black — essential for interfacing dark fabrics where white interfacing would show through or create an undesirable lighter appearance
• Width: 20" — standard interfacing width
• Length: 10 yards per bolt
• Type: Woven fusible — iron-on application; moves with fabric drape
• Fiber: 100% cotton woven base for breathability and natural feel

Frequently Asked Questions

Why do I need black interfacing instead of white?

When interfacing dark or black fabrics, white interfacing can be visible through the fabric or lighten the appearance of the fashion fabric. Black SF101 is invisible under dark fabrics, maintaining the rich, deep color of your project.

Is Shape-Flex SF101 the same in black as it is in white?

Yes — the construction, weight, and performance are identical. Only the color of the interfacing fabric base differs. Both bond to fabric the same way and provide the same soft, woven structure.

How do I apply fusible woven interfacing?

Cut interfacing to size, place the fusible (slightly rough) side against the wrong side of your fabric, and press with a dry or steam iron at the cotton setting. Hold the iron in place for 10–15 seconds per area without sliding, then allow to cool completely before handling.

What projects are best suited for Shape-Flex SF101?

SF101 is excellent for garment bodices, collar and cuff interiors, bag panels, and quilting projects involving appliqué on dark background fabrics. It adds stability without changing the hand of the fabric.

Is black SF101 washable?

Yes — Shape-Flex SF101 is designed for repeated laundering once fused. Machine wash and dry as you would the fashion fabric.