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New England Poly/Nylon Double Braid x 600ft. Spool

  • New England Poly/Nylon Double Braid, Polyester/Nylon
31.00 LBS
Calculated at checkout

Product Description

**Larger diameters up to 2 1/2" available.  Please call 509-291-3024 or email cbknot@cbknot.com for pricing and availability.  

Product Description:
Polyester cover over a nylon core. This combination of fibers provide a balanced rope construction of extremely high strength. Stronger than either 100% nylon or 100% polyester double braids, but offering less elongation than an all-nylon rope. The polyester cover offers the same excellent abrasion resistance found in an all-polyester rope. Ideal for uses requiring good energy absorption, high strength, and wet abrasion resistance. Conforms to military specification Mil-R-44123. Certificate available upon request.


  • Moderate elongation
  • Excellent abrasion resistant and durable
  • High strength to diameter ratio
  • Torque free
  • Easy to splice


  • Mooring lines
  • Winch lines
  • Commercial fishing lines

Colors Available:

  • White

Lengths Available:

  • 600'
 3/8"  4.3  64.0  5,200  2,359
 7/16"  6.0  89.3  7,700  3,494
 1/2"  7.8  116.0  10,400  4,719
 9/16"  9.4  139.9  14,800  6,715
 5/8"  11.1  165.1  15,000  6,806
 3/4"  15.9  236.5  20,900  9,483
 7/8"  22.6  336.2  30,980  14,056
 1"  30.5  453.7  35,340  16,034
 1-1/8"  37.5  557.5  53,250  24,161
 1-1/4"  45.0  669.6  63,820  28,956
 1-1/2"  73.2  1089.2  80,140  36,361
 1-5/8"  80.0  1190.4  101,000  45,854
 1-3/4"  97.3  1447.8  121,000  54,934
 2"  115.0  1711.2  143,000  64,922
 2-1/8"  131.2  1952.3  168,000  76,272
 2-1/2"  167.0  2485.0  219,000  99,426
 2-5/8"  187.5  2790.0  248,000  112,592

Very little degradation from sunlight. Can be used outside over long term if inspected regularly.

Nylon will degrade with strong oxidizing agents, mineral acids, and 90% formic acid. May discolor when exposed to high levels of carbon dioxide. Polyester has good resistance to most chemicals, except 95% sulfuric acid and strong alkalines at boil.

Nylon melts at 460°F with progressive strength loss above 300°F. Polyester melts at 480°F with progressive strength loss above 300°F.

Good resistance to the passage of electrical current. However, dirt, surface contaminants, water entrapment, and the like can significantly affect dielectric properties. Extreme caution should be exercised any time a rope is in the proximity of live circuits.

Recommended sheave diameter to rope diameter is 8:1.

Working Loads:
No blanket safe working load (SWL) recommendations can be made for any line because SWL's must be calculated based on application, conditions of use, and potential danger to personnel among other considerations. It is recommended that the end user establish working loads and safety factors based on best practices established by the end user's industry; by professional judgment and personal experience; and after thorough assessment of all risks. The SWL is a guideline for the use of a rope in good condition for non-critical applications and should be reduced where life, limb, or valuable property is involved, or in cases of exceptional service such as shock loading, sustained loading, severe vibration, etc. The Cordage Institute specifies that the SWL of a rope shall be determined by dividing the Minimum Tensile Strength of the rope by a safety factor. The safety factor ranges from 5 to 12 for non-critical uses and is typically set at 15 for life lines.

Splicing Instructions:
Double Braid Eye Splice

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