Pellon SF101 Shape-Flex Cotton Woven Fusible Interfacing 20" x 10 yards White is the most widely used woven fusible interfacing in quilting and garment sewing — a lightweight, stable, 100% cotton woven interfacing that adds body and structure to garment pieces, bag components, quilt labels, and any fabric application where a crisp, sew-able, iron-on stabilizer produces clean, professional results.
Top 10 Questions About Pellon SF101 Shape-Flex Interfacing
Q: What makes SF101 Shape-Flex the most popular woven fusible interfacing?
A: SF101 is woven rather than non-woven — meaning its fiber structure is perpendicular to its edges, just like fabric. This makes it stable on the grain, sewable in any direction, and compatible with woven quilting cottons and garment fabrics without distortion. It is the professional standard for any application requiring stable, iron-on body in a natural cotton hand.
Q: What is the difference between SF101 and non-woven interfacings like Pellon 808?
A: SF101 is woven cotton — it behaves like fabric, has grain and crossgrain, and produces results that feel natural and professional on woven fabrics. Non-woven interfacings (like 808 Craft-Fuse) are stiffer and have no grain, making them better for craft applications where fabric-like drape isn't required.
Q: How do I apply SF101 Shape-Flex?
A: Place the adhesive (rough/coated) side against the wrong side of your fabric, cover with a press cloth, and press firmly with a dry iron at cotton setting for 10–15 seconds per section. Allow to cool before handling for a secure, permanent bond.
Q: What projects work best with SF101?
A: Garment collars, cuffs, plackets, and facings; tote bag handles and panels; quilt labels; pillow covers; anything requiring crisp, stable body with a natural cotton hand. It is the most versatile woven interfacing for both garment and quilting applications.
Q: Is SF101 100% cotton?
A: Yes — the woven base fabric is 100% cotton, making it completely compatible with cotton quilting fabrics and garment-weight cottons, and easy to press with standard cotton iron settings.
Q: How wide is SF101 Shape-Flex?
A: 20" wide — the standard bolt interfacing width for garment and accessory applications. The 10-yard bolt provides ample material for multiple projects.
Q: Is SF101 washable in finished projects?
A: Yes — SF101 is machine washable after proper heat-activation. Follow garment care instructions appropriate for the outer fabric.
Q: Can SF101 be used with quilting cotton for bag construction?
A: Yes — SF101 is one of the most popular interfacings for quilted tote bags, zip pouches, and structured bag panels using quilting cotton. It adds the body and structure needed for professional bag construction without making the fabric stiff or plastic-feeling.
Q: Does SF101 affect the drape of quilting cotton?
A: It adds body and reduces drape slightly — the result is a crisp, structured fabric rather than a soft, drapey one. This is the desired effect for collars, bag panels, and structured applications where the fabric needs to hold its shape.
Q: Is Pellon SF101 Shape-Flex White in stock at Linda's?
A: Check the current product listing for live availability. SF101 is one of the most consistently stocked interfacing products at Linda's Electric Quilters.
The professional standard for woven fusible interfacing — shop Pellon SF101 Shape-Flex White at Linda's Electric Quilters.
