Thread for Serger
A serger offers a range of techniques not possible with a standard sewing machine. From professional garment construction to decorative rolled hems, your serger can handle it all. The key is using the right thread in the right position. Needle threads need strength, while looper threads need coverage and softness. By mixing different threads in your loopers and needles, you can create everything from invisible seam finishes to bold decorative edges on napkins, tablecloths, and garments.
For General Sewing
Thread for everyday serging, including garment construction, seam finishing, and edge treatments. Professional results with soft, comfortable seams.
Woolly Nylon
Textured nylon
"Stretchy woolly nylon for soft, durable serged seams that move with fabric"
Perfection
50 wt. polyester
"Ideal for piecing, quilting, and sewing when you want the color to blend"
Unlimited Universal
28 wt. polyester
"Heavy and strong thread for machine quilting and serging"
For general serging, use Woolly Nylon in your loopers and a strong polyester in your needles. Woolly Nylon is a soft, stretchy textured nylon thread that fills in the spaces between stitches, creating smooth, professional-looking edges. It's comfortable against skin and moves with stretch fabrics rather than restricting them. Use Perfection or Unlimited Universal in your needle positions for strength and durability.
For Decorative Sewing
Thread for decorative rolled hems, decorative edges, flatlock seams, and other techniques where your stitching becomes a design element.
Pearl Crown Rayon
12 wt. rayon
"Give serged seams a lustrous, rope like finish on hems and edges"
Candlelight
12 wt. metallic
"Perfect for bobbin work, machine couching, loopers, and serger fringe"
Jeans Stitch
12 wt. polyester
"Create heavy decorative seams and rolled edges with your serger"
Variations
40 wt. polyester
"High-sheen, high-strength polyester thread for machine quilting"
For decorative rolled hems and decorative edges, thread your upper looper with Pearl Crown Rayon, Candlelight, Jeans Stitch, or Variations. Pearl Crown Rayon, Candlelight, and Jeans Stitch are all 12 wt. heavyweight threads that create bold, defined stitches. Pearl Crown Rayon adds lustrous sheen, Candlelight brings metallic sparkle, and Jeans Stitch delivers a matte finish. Use Woolly Nylon in the lower looper and a standard thread in the needles.
What Serger Enthusiasts Are Saying
Real sewists, real results. Here's what fellow serger users say about their thread choices:
Frequently Asked Questions
Your Serger Questions, Answered
For most serging, Woolly Nylon is the gold standard for your loopers. Its soft, stretchy texture creates beautiful, professional-looking seams and rolled hems without adding bulk. Woolly Nylon fills in the spaces between stitches and gives you that smooth, even edge coverage that makes serged seams look so polished. Use regular serger thread or QuiltMaker in your needle positions for strength, and Woolly Nylon in the upper and lower loopers for the best results. If you want decorative effects, you can also use Pearl Crown Rayon or Jeans Stitch in your loopers for gorgeous rolled hems and flatlock seams with extra visual interest.
You can, but you'll get much better results with threads designed for sergers. Regular sewing thread works in the needle positions, but it doesn't create the same soft, smooth coverage in the loopers that serger-specific threads do. Serger threads like Woolly Nylon (for the looper) are designed to spread and fill, creating those professional-looking edges without bulk or stiffness. Plus, sergers use a lot more thread than regular sewing machines (you're using 3-4 cones at once!), which is why QuiltMaker is an excellent needle thread, so the large cone put-up of serger threads means fewer interruptions. If you're in a pinch and need to finish a seam, sure, regular thread will work. But once you try real serger thread, you'll never want to go back to regular thread.
Not necessarily! Here's the secret to beautiful serger stitching: use what works best for each position. Many sewists use regular polyester serger thread in the needle positions for strength and Woolly Nylon in the loopers for soft, beautiful coverage. For decorative work, consider using Woolly Nylon in the lower looper, Pearl Crown Rayon or Jeans Stitch in the upper looper, and regular thread in the needles. The needle thread needs to be strong, but the loopers can be softer and more decorative. Experiment with different combinations - that's part of the fun of serging! Just make sure everything is the same or similar weight to keep your tension balanced.
Woolly Nylon is a textured nylon thread that's soft, stretchy, and designed to fill in your serger stitches. When it comes out of the looper, it relaxes and fluffs up, creating smooth, professional-looking coverage on seams and edges. Regular serger thread (usually poly-wrapped poly core or spun polyester) is perfect for the needle positions, but not as forgiving or pretty in the loopers. Think of Woolly Nylon as your go-to looper thread for clothing, garments, napkins, tablecloths, and anywhere else where your edges or seams need stretch and excellent coverage.
If your Woolly Nylon stitches look uneven or loopy, adjust your looper tension dials gradually. Tighten the looper tension if stitches are too loose or loopy on the fabric edge. Loosen it if the fabric puckers or the thread isn't spreading to cover the edge smoothly. Make only small adjustments (one number at a time) and test on scrap fabric. Also check that the Woolly Nylon is threaded correctly through all guides and tension discs. Because Woolly Nylon is textured and stretchy, it behaves differently than regular thread, so your settings may need tweaking when switching from standard serger thread.
Serger enthusiasts love Woolly Nylon
Woolly Nylon: The Essential Looper Thread
Woolly Nylon is the go-to looper thread for serger enthusiasts. This soft, stretchy, textured nylon thread fills in the spaces between stitches, creating smooth, professional-looking edges on everything from baby blankets to garment seams. When it comes out of the looper, Woolly Nylon relaxes and fluffs up, giving you that beautiful coverage that makes serged edges look polished. Sewists who've used it for 20+ years tell us: "It finishes the edges beautifully."