Pellon 805 Wonder-Under — 17" x 10 yards, White is the classic paper-backed fusible web — the trace-fuse-cut-peel-press foundation of machine and raw-edge appliqué.
Product Details
- Material: Paper-backed fusible web — bonds fabric to fabric permanently
- Format: 17" wide x 10 yards — appliqué-piece scale
- Workflow: Trace on paper side → fuse web to appliqué fabric → cut shape → peel → position → press permanent
- Iron: Dry setting for fusing — steam causes bubbling
- Care: Finished projects machine wash gentle — edge-stitch appliqués for long-term durability
Frequently Asked Questions
- What makes Wonder-Under the appliqué default?
- The paper backing — shapes trace and cut precisely, the web fuses accurately, and the peel-and-press flow is faster than any needle-turn or glue method. It's the workhorse product behind most raw-edge appliqué quilts.
- Wonder-Under or an interfacing?
- Different jobs entirely — web bonds two fabric layers together; interfacing stiffens one. If a shape is being attached, it's web; if a panel needs body, it's interfacing.
- Does the stiffness matter?
- It helps appliqué — the fused shape holds flat under the machine's edge stitching. On garments where drape matters, step to a lighter web like Lite Steam-A-Seam.
- Why edge-stitch if the bond is permanent?
- Wash insurance — the fuse survives normal laundering, but a stitched edge (blanket, zigzag, or straight) locks the appliqué for the quilt's lifetime and finishes the look.
- Common failure to avoid?
- Steam during fusing and sliding the iron — the bond wants dry pressed heat, lifted and repositioned; anything else bubbles.

