GORE® TENARA® Sewing Thread can improve the performance of outdoor and marine products that demand exceptional seam life and seam integrity. Conventional seam threads can embrittle or break after a few years of exposure to the elements. Only GORE TENARA Sewing Thread durably withstands exposure to sunlight, saltwater, harsh chemicals, pollution and extreme temperatures without fading or deteriorating. 

That’s because GORE TENARA thread has a unique ePTFE fiber construction that extends the life of fabric seams — and ultimately, the life of the products in which they are used. Due to its exceptional material properties and use of non-fading pigments rather than dyes, colorfast GORE TENARA Sewing Thread retains its bold appearance over time, even after exposure to harsh cleaning chemicals.

And because this durable thread does not deteriorate — not even after prolonged exposure to UV radiation — it is guaranteed to outlast the fabric in which it is used. 


Performance Benefits

Guaranteed to last
  • Unaffected by sunlight

GORE TENARA Sewing Thread maintains its strength even after regular exposure to sunlight’s UV rays. This thread effectively resists breakage because UV resistance is permanently built right into our fibers — it’s not a coating or additive that can wear off.

  • Weather-proof

GORE TENARA Sewing Thread remains flexible and strong in extremes of hot and cold. It won’t absorb water and it durably resists acid rain, saltwater, pollution, snow and freezing temperatures.

Gore Graphic on Break Strength

GORE TENARA Sewing Thread will outlast the fabric into which it is sewn.

Gore guarantees it!

Known for premium quality
  • Enhance your reputation

Using GORE TENARA Sewing Thread lets your customers know you are providing a premium product with durable seams that are built to last. After more than 30 years in the market, GORE TENARA Sewing Thread has proven itself for delivering lasting quality, for performance that both you and your customers can trust. 

Gore Tenara Label
Beauty that endures
  • Easy to clean

GORE TENARA Sewing Thread is unaffected by acids, alkaline solutions, bleach and cleaning chemicals. Just as important: it will not stain.

As shown, after a red-wine spill, a typical polyester thread absorbed a red stain that couldn’t be removed by cleaning. Compare that to the GORE TENARA Sewing Thread, which cleaned up easily and looks like new.

Gore Tenara Easy to Clean
  • Colors will not fade

GORE TENARA Sewing Thread is pigmented — not dyed. Because these non-fading pigments are highly resistant to light, our colorfast threads retain their bold appearance over time. In tests conducted by an independent laboratory*, GORE TENARA Sewing Thread received the highest score possible: a light-fastness rating of 8.

* Tests conducted by Q-Lab Corporation in 2019 according to DIN EN ISO 105-B06A:2004-07.

Gore Tenara Sunshades Colors will not Fade


World-renowned manufacturers and fabricators have discovered how GORE TENARA Sewing Thread enhances the quality, beauty and durability of their products. In outdoor and marine applications, look for GORE TENARA Sewing Thread as the sign of a premium product that is backed by Gore's Limited Lifetime Warranty.

  • Awnings
  • Garden structures
  • Outdoor upholstery
  • Patio furniture
  • Sun protection and shade sails
  • Swimming pool covers
  • Umbrellas
  • Bimini tops
  • Boat covers
  • Boat enclosures
  • Dodgers
  • Sails
  • Sail covers
  • Seat cushions
  • Side curtains
  • Upholstery
  • Artificial Turf installation
  • Camping equipment
  • Convertible tops
  • Equestrian equipment
  • Flag manufacturing
  • Hunting blinds
  • Kayak Covers
  • Moon Bounces
  • Inflatable Aircraft Hangers
  • Recreational Vehicle (RV) Awnings
  • Tarps and tents
  • Tennis and soccer nets

Product Specifications

CLEAR for optimal fabric blending
Part Number Linear Density Approximate Polyester Equivalent Nominal
Break Strength
Nominal Elongation
at Break (%)
Recommended Needle Size Typical Applications**
M1000LTR-L 1111 dtex 1000 denier 69 Tex 
Nm 50/60
3114 cN 7 lbs 17 Nm 90-110 
Awning binding, pillows, light weight cushions, curtains, awning side curtains, valances
M1000KTR-L 1556 dtex 1400 denier 92 Tex 
Nm 35/40
4448 cN 10 lbs 17 Nm 100-120
Awnings, marine, upholstery
NEW! M1003HTR-L 2775 dtex 2500 denier 138 Tex 
Nm 20/25
8452 cN 19 lbs 10 Nm 110-140
Large awnings or structures, marine, sails, heavy clear vinyls, zippers, areas where additional seam strength is desired
Vibrant Fade Resistant COLORS
Part Number Linear Density Approximate Polyester Equivalent Nominal
Break Strength
Nominal Enlongation
at Break (%)
Recommended Needle Size Typical Applications**
M1000TR-(XX) 1556 dtex 1400 denier 92 Tex 
Nm 35/40
3559 cN 8 lbs 17 Nm 100-120
Awnings, marine, upholstery, decorative top stitching, awning side curtains, valances
NEW! M1003HTR-(XX) 2775 dtex 2500 denier 138 Tex 
Nm 20/25
6228 cN 14 lbs 10 Nm 120-140
Large awnings or structures, marine, heavy clear vinyls, zippers, areas where additional seam strength is desired

**The fabricator is responsible for determining the correct thread size for the application.

Available thread colors
Outdoor Sewing Thread colors
Color swatch

Additional colors may be available. Please contact us.

Available in the following spool sizes:

  • 300-meter spools
  • 1/2 pound spools (1050–2100 m/1150–2300 yd yield depending on denier)
  • 1 pound spools (1800–4500 m/1967–4921 yd yield depending on denier)

To order, substitute color code for (XX) and specify spool size. For example: M1000TR-BK (1556 dtex/1400 denier Black). 


Recent News


Meet Us at the ATA Expo, November 1-2, 2023

November 1, 2023 - November 3, 2023

Visit us in Booth #1439 to learn how colorful, durable GORE TENARA Sewing Thread can enhance your marine and outdoor projects.


GORE® TENARA® Sewing Thread Featured in MFA 2022 Fabrication Excellence Awards

Posted March 14, 2022

Top honors — an Award of Distinction — in 2022’s prestigious marine industry competition went to GORE® TENARA® Sewing Thread customer Bootssattlerei Hallier of Bad Abbach, Germany. Sponsored by the Marine Fabricators Association (MFA), the annual contest recognizes excellence in fabrication in a variety of categories. Only two Awards of Distinction are issued, recognizing “the best” of the Award of Excellence winners.


GORE® TENARA® Sewing Thread Expands Its Portfolio with Multiple Spool Sizes

October 2, 2019 - October 4, 2019

See these spools on display and speak to a Gore Associate at booth # 2362 to learn how these NEW sizes optimize production time and efficiency, adding to the many advantages this premium sewing thread provides.


New Navy Blue GORE® TENARA® Sewing Thread Is The Perfect Match For Your Favorite Navy Blue Marine Fabric

Posted July 14, 2017

Give your projects a custom, polished look with the premium outdoor sewing thread that’s guaranteed to last a fabric’s lifetime. The new Navy Blue GORE TENARA Sewing Thread is a perfect match for popular navy blue marine fabrics.

View all News & Events


Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.