New England Ropes Heat Set Dyneema Line

100% of 100
As low as $1.46 Regular Price $1.95

Line and wire is sold by the foot.

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New England Ropes STS (stronger than steel) uses a precisely controlled rotation, heating, and tensioning process to heat set high-modulus Polyethylene fibers and balance loads across the ropes' shorter and longer fibers. On a microscopic level, the process straightens molecular chains for higher specific tensile properties resulting in over 25% more breaking strength and 90% less stretch than its competition at equal diameters.

Common Applications:

  • Common applications for uncovered Heat Set Dyneema include steering cables, backstays and other applications that need high strength, low stretch and greater durability than Vectran.
  • Common applications when the line is installed with a cover include main and headsail halyards - especially on big boats, afterguys and asymmetrical tack lines.


  • Heat Set Dyneema is very slick and stiff and feels almost like wire.

Cover Material: No cover

Core Material: Heat Set Dyneema SK-78

  • The 100% Dyneema construction paired with the temperature and tensioning process creates a high strength, super durable line. Will stand up on end due to the heat set construction.

End Termination: Melted

  • Ends can be melted but the line doesn’t melt together as well as polyester. However, Dyneema will fuse together and the tight weave will limit fraying.

Spliceable: Yes

  • Very spliceable. Easily done with a 12-strand eye splice.

Strippable: No

  • Cannot be stripped, but can be inserted as a core.
Size Specifics
Size: InchesSize: MillimetersTensile Strength (lbs.)Weight in Lbs/100 ft.
5/32 4 5,200 -
3/16 5 9,300 4.2
1/4 6 12,600 5.7
9/32 7 19,000 7.92
3/8 9 25,600 13.20
Line Characteristics
 Poor Average Excellent
Cleat/Clutch Holding          
Abrasion Resistance          
Thermal Resistance          
 Low Medium High
Water Absorption          

APS Advisor Custom Rigging and Splicing Services

More Information
Line Application Main Halyard, Jib/Genoa Halyard, Backstay
Line Construction Single Braid
Core Material Dyneema SK-78
Can Strip Cover? No
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Video Transcript

Hi, this is Kyle from APS and I'm here to share with you some of the characteristics of Heat Set Dyneema Line by New England Ropes.

This is a heat set. Basically it's a DSK 78, and while under tension, the heat set this. Why would they do that? Some of the fibers may not, during the braiding process of making the line, may have not been under full tension or in alignment. While stretching it and applying heat, they're allowing the line to basically do a little bit of pre-creep, and it aligns all the fibers such that right off the spool, this has been optimized. It is at the peak of its performance in terms of a DSK 78.

Why would you choose this? You want very high strength, low creep. Because it's Dyneema it has very high abrasion resistance, so it's gonna be better than Vectran in terms of abrasion resistance. We see this used on big boat, and small boat, but mostly big boat halyards, headsail, main, afterguys, things like that where you want no movement and you want something that's very durable. This is something that we would add covers to in the areas that they are handled, clutched, cleated, and winched. That should be done to your specifications. It's available in the one color. It's available in 5/32” all the way up to 3/8”. It is very stiff off the spool, but once you've worked with it a while, it starts to break in and it turns itself back into a normal-feeling single braid, so much softer all of a sudden here.

This is the 5/32”, and braid angle on that. Got the 3/16”, gonna loosen this coating up, and kind of a medium braid angle, medium to tight. Break some of the coating up off of this, here we go. This is up into the ¼”. Here we jump into 9/32”.

This is Heat Set Dyneema Line by New England Ropes. For these and all of your line needs, visit us at