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Tenara® Sewing Thread is truly a remarkable product. What makes a thread remarkable? How about one with a lifetime warranty? Tenara is so strong and durable that it won’t break down when exposed to UV rays, cleaning agents, saltwater or extreme weather. In fact, it often outlasts the fabric that it’s sewn in! That’s why Gore, the company that makes Tenara, guarantees it for life.

Tenara is made from a synthetic fluoropolymer and the unique, patented formulation of this material is the source of its strength. We thought it would be fun to share some Tenara Sewing Thread trivia facts with you today.

7 Fun Facts About Tenara Thread

  1. Tenara thread is unaffected by UV radiation and is not harmed by chemicals, even bleach.
  2. Besides being used in marine applications, Tenara thread is also used to sew inflatable aircraft hangers, convertible tops, moon bounces, and artificial turf.
  3. Fabric made from this fiber was used to create the roof over center court Wimbledon.
  4. Types of fluoropolymer films are the only synthetic surface to which a gecko’s sticky toes won’t stick.
  5. The first major order Gore received was for 7.5 miles of insulated ribbon cable for the city of Denver, Colorado.
  6. Tenara thread is made by W.L. Gore & Associates, the same company that makes GORE-TEX® fabrics, among many other products.
  7. Gore products are used all over the world and beyond: to repair hearts, to protect astronauts in their spacesuits and to power the Mars rover.

Try the unbeatable strength of Tenara thread for your next outdoor project! Tenara is available at

Tenara® thread has its many benefits including high resistance to sunlight, mold, and rot, but SEWING with Tenara thread can be tricky. The advantages to using Tenara far outweigh the slight modifications needed to achieve trouble-free sewing. For a list of those advantages and tips on sewing with Tenara, watch this video.



We received an email from an Ultrafeed® LS-1 sewing machine owner with his creative solution to sewing with Tenara. Enjoy!

“I recently purchased Tenara thread to use for the construction of a Bimini. I had lots of problems using it with skipped stitches etc. Tried smaller needles, moving the thread a distance away from the machine, rotating the needle. However nothing worked until I built this at your advice. Using a #18 needle, rotating the needle 15 deg. +/- and this device to help eliminate tread twisting, IT WORKED!


The frame is made from ½” heavy wall PVC pipe, 2 tees, 2 elbows and 4 – 7/8” “feet” available from hardware store. Total cost less than $5. I did not glue the components together so that I can move the feet so that the tread comes off the spool on the lower end and it will not slip on a smooth working surface. Rough dimensions are 12” legs (total), 5” high and 10” wide.

Hope this helps your customers.”

Thanks Sam for sharing this great idea!

Typically when starting an outdoor fabric project substantial consideration is given to the quality of fabric used whether it is for a boat in a marina or an outdoor awning for a home or business. Often little consideration is given to what type of thread will be used. Unfortunately, the fabric is only as good as the thread that holds it together! The quality of outdoor thread is just as important as the fabric in any outdoor application.

There are two major causes for outdoor thread deterioration: Ultraviolet radiation and water-borne bacteria and fungus. Sunlight and micro-organisms cause outdoor thread to weaken rapidly, lose color, and deteriorate. Unfortunately, these problems are here to stay! The solution is GORE™ Tenara® Outdoor Thread.

Tenara Outdoor Thread is unaffected by sunlight. Extensive tests performed in full Arizona desert sun show that Tenara thread retains its strength for over five years. In fact, Tenara will probably outlast the material it is sewn into! During the same experiment (same duration and conditions), both polyester and cotton thread lost over 80% of their strength. These types of thread will fade, discolor, and weaken over time.

GORE Tenara Thread is also unaffected by mold and mildew. Tenara thread is hydrophobic, meaning it repels water. Without water, micro-organisms like mold and mildew will not grow in the thread. Both polyester and cotton threads attract and retain water so they can absorb colored dyes, but it also makes for a very attractive environment for mold, mildew, and algae. Over time, the natural progression of mold and mildew can cause polyester and cotton thread to rot, discolor, and lose integrity.

Tenara will add years to the life of boat covers, awnings, and other outdoor applications, and it is supported by a Lifetime Guarantee. However, choosing to sew with Tenara also comes with a few drawbacks. Tenara is significantly more expensive than standard UVR polyester thread, and it can be difficult to sew. Although the cost factor is for you to decide, we’ve put together a video full of helpful tips and tricks to use when sewing with Tenara thread.



Whether you live in the tropics or want outdoor covers and awnings that don’t need restitching every other year, choose GORE™ Tenara® Outdoor thread. Tenara comes in several different colors and two different weights. Standard Tenara is similar to a V-92 weight thread with an 8–10 lb. breaking strength. Heavy Tenara is similar to a V-138 weight thread with a 15 lb. breaking strength.

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