Learn about Aurifil Cotton thread. See thread weight / use recommendations for over forty types of sewing
Aurifil Cotton

40-Weight Spools

40-Weight Cones

50-Weight Spools

50-Weight Cones

40-Weight / 3-Ply Cones

Aurifil Color Card - $21

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Aurifil is 100% Egyptian cotton grown in the Mako region on the Nile. Like wine, geography affects quality. The Mako region is famous for the its long staple cotton that is stronger, softer, and more durable than other kinds of cotton. We currently sell Aurifil's 40-weight, 50-weight, and Forty3 -- a 3-ply 40-weight thread designed for high speed Longarm quilting.

About Aurifil Cotton - Aurifil cotton is made in Milan, Italy using a 15-step process to ensure quality. The thread is mercerized to add strength and a beautiful sheen. During winding, it is passed through a transparent paraffin oil to help it glide through your machine without leaving any type of residue.

Like all colorful textiles, Aurifil colors may bleed if not cared for properly. Aurifil uses the Indianthren method to dye 249 of its 270 colors because it gives the highest level of colorfastness. There are 21 colors dyed using the slightly less stable Reactive method. They are identified on our site. For best results Aurifil recommends following thread care standards:

  Indianthren Dyed Reactive Dyed Multicolored / Variegated
Maximum washing temperature 160F / 70C 140F / 60C 85F / 30C
Use chlorine Yes - In cold water No No
Maximum ironing temperature 300F / 150C 300F / 150C 110C / 230F
Dry cleaning Yes Yes Yes
Tumble drying in warm air No No No

Aurifil threads are not organic. They are Oeko-Tex certified. This means that Aurifil threads are free from harmful chemicals and are safe for human use. In quilter's terms you and your loved ones can wrap yourselves and your quilts without worry.

Our Aurifil Products - Currently, we sell Aurifil Cotton on 40-Weight and 50-Weight large spools and cones in 270 colors. We also sell Aurifil 40-Weight / 3-Ply cotton cones in 50 colors
40-Weight - Aurifil 40-Weight 100% Egyptian, Mako cotton comes on 1000-meter / 1094-yard spools and 4700-meter / 5140-yard cones and is available in 270 colors. 40-weight cotton is slightly thicker than 50-weight making it perfect for sewing bags, toys or dolls, garments, or when a more defined topstitching or quilting pattern is desired. It is recommended for:
Cross stitch Hand piecing Bobbin lace
Machine lace Machine applique Machine embroidery
Edge-to-edge sewing Pantographs Longarm quilting
Use an 80 /12 microtex / sharp, universal, or denim needle, OR a 90 / 14 or 75 / 11 quilting needle, OR a 3.5 or 4.0 longarm quilting needle. Use 50-weight bobbin thread
50-Weight - Aurifil 50-Weight 100% Egyptian Mako cotton comes on 1300-meter / 1422-yard spools and 5,900 meter / 6,452-yard cones. It is available in 270 colors. This lighter weight thread is recommended for:
English paper piecing Hand piecing Bobbin lace
Machine lace Machine applique Dense machine quilting
Longarm quilting Basting Dense background designs
 Use an 80 / 12 microtex, sharp, universal or denim 4.0 needle and 50-weight bobbin thread..
Forty3 40-Weight / 3-Ply - Aurifil 40-Weight / 3-Ply 100% Egyptian cotton comes on 3000-meter / 3280-yard cones in 50 color.  It is specifically designed for today's high-speed, high tech Longarm machines. It retains the versatility, lustrous color and virtually lint free properties of 40-weight / 2-ply cotton with the added benefit of extra strength. It is recommended for:
Machine embroidery Machine quilting Thread painting
Decorative stitching Satin stitching Decorative applique
Garment sewing    
Use a 90 / 14 or 100 / 16 topstitching needle, OR a 4.0 or 4.5 Longarm needle. Use either 40-weight or 50-weight bobbin thread.

Thread Weight and Uses - Aurifil uses the industry standard Number English (Ne) method to specify thread weight. Technically, thread weight is the number of hanks (840 yards) required to make one pound of thread. A 40-weight thread requires 40 hanks to make a pound; a 50-weight thread requires 50 hanks to make a pound. A higher weight means a thinner thread; a lower weight means a thicker thread.

Selecting the right thread weight depends on what you want to do. Here are Aurifil's thread weight / usage recommendations as adapted from the Aurifil Product Guide.

 

Highly Recommended

Suitable

Suitable

Suitable

Not Recommended

Not Recomended

Unsuitable

Not Suitable

 

 

40-Weight

50-Weight

Forty3

12-Weight

28-Weight

80-Weight

Floss

Machine Piecing

Suitable

Suitable Suitable Not Suitable Not Suitable Not Suitable Not Suitable

Hand Piecing

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Not Suitable

English Paper Piecing

Not Recomended

Suitable

Not Recomended

Not Suitable

Not Suitable

Suitable

Not Suitable

Foundation / Paper Piecing

Suitable

Suitable

Suitable

Not Suitable

Not Suitable

Not Suitable

Not Suitable

Domestic Machine Quilting

Suitable

Suitable

Suitable

Not Recomended

Suitable

Suitable

Not Suitable

Hand Quilting

Suitable

Not Recomended

Suitable

Not Recomended

Suitable

Not Suitable

Suitable

Longarm Quilting

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Not Suitable

Free Motion Quilting

Suitable

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Stitch In The Ditch

Suitable

Suitable

Suitable

Not Suitable

Not Recomended

Suitable

Not Suitable

Big Stitch Hand Quilting

Not Suitable

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Suitable

 

40-Weight

50-Weight

Forty3

12-Weight

28-Weight

80-Weight

Floss

Tied Quilting

Not Suitable

Not Suitable

Not Suitable

Suitable

Not Recomended

Not Suitable

Suitable

Machine Applique

Suitable

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Hand / Needle Turn Applique

Not Recomended

Suitable

Not Recomended

Not Suitable

Suitable

Suitable

Not Suitable

Row Edge Applique

Suitable

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Wool Applique

Not Recomended

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Reverse Applique

Not Recomended

Suitable

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Machine Embroidery

Suitable

Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Hand Embroidery

Not Recomended

Not Recomended

Suitable

Suitable

Suitable

Not Suitable

Suitable

Cross Stitch

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Huck Embroidery

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

 

40-Weight

50-Weight

Forty3

12-Weight

28-Weight

80-Weight

Floss

French Knots

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Bobbin Work

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Not Suitable

Suitable

Hand Sashiko

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Redwork

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Hardanger

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Bobbin Lace

Suitable

Suitable

Not Suitable

Not Recomended

Suitable

Not Suitable

Not Suitable

Lace

Suitable

Suitable

Not Suitable

Not Recomended

Suitable

Not Recomended

Not Suitable

Needle Punching

Not Suitable

Not Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Machine Embroidery Lace

Suitable

Suitable

Not Suitable

Not Recomended

Suitable

Not Recomended

Not Suitable

Decorative Stitching

Suitable

Suitable

Suitable

Suitable

Suitable

Not Recomended

Suitable

 

40-Weight

50-Weight

Forty3

12-Weight

28-Weight

80-Weight

Floss

Embellishment

Suitable

Suitable

Suitable

Suitable

Suitable

Not Recomended

Suitable

Hand Couching

Suitable

Suitable

Suitable

Suitable

Suitable

Suitable

Suitable

Free Motion Couching

Suitable

Suitable

Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Binding

Suitable

Suitable

Suitable

Not Recomended

Suitable

Not Suitable

Not Suitable

Thread Painting

Suitable

Suitable

Suitable

Not Recomended

Suitable

Not Recomended

Not Suitable

Smocking

Suitable

Suitable

Not Suitable

Not Recomended

Suitable

Not Recomended

Suitable

Basting

Suitable

Suitable

Not Suitable

Not Suitable

Not Recomended

Not Recomended

Not Suitable

Decorative Mending

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Suitable

Tatting

Not Suitable

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Suitable

 

40-Weight

50-Weight

Forty3

12-Weight

28-Weight

80-Weight

Floss

Crochet

Not Suitable

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Suitable

Crewel

Not Suitable

Not Suitable

Not Suitable

Suitable

Suitable

Not Suitable

Suitable

Serging

Suitable

Suitable

Suitable

Not Suitable

Suitable

Not Suitable

Not Suitable

Garment Sewing

Suitable

Suitable

Suitable

Not Suitable

Suitable

Not Suitable

Not Suitable

Buttonholes

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Not Suitable

Bag Sewing

Suitable

Suitable

Suitable

Suitable

Suitable

Not Suitable

Not Suitable