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5mm Samson Amsteel-Blue Dyneema Line

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5 mm
Line Type:
Dyneema Single Braid



Amsteel Blue from Samson is a high-performance 12-strand single braid line made of 100% Dyneema fiber. It offers a high strength-to-weight ratio (stronger than steel) with very low stretch. High abrasion and cut resistance thanks to a Samthane coating and it even floats. Recommended for high load, static applications like halyards, wire replacement, and lightweight spinnaker sheets, and our top choice for Laser traveler lines.

  • Color - Green
  • Diameter - 5mm (3/16 inch)
  • Core - 12 Strand Dyneema SK-78
  • Cover - N/A
  • Applications - Control Lines, Travelers, Halyards, Spinnaker Sheets
  • Features - Low Stretch, High Strength, Abrasion Resistance
  • Average Strength - 5400 lbs
  • Minimum Strength - 4900 lbs
  • Weight (100 ft) - 1.00 lbs
  • SOLD BY THE FOOT (Quantity 1 = 1 Foot. Adjust quantity to order longer lengths)


  • Strength - Dyneema fiber is stronger than steel for its weight
  • Stretch - Very low stretch and creep - resists stretching under static load
  • Elongation - 0.96% when loaded at 30% of breaking strength
  • Material - Dyneema® SK-78 HMPE (high molecular weight polyethylene)
  • Contruction - 12-Strand hollow braid
  • Splicing Technique - Full-bury 12-strand splice

Dynema® is the Dutch company DSM Dyneema's brand of UHMWPE (Ultra High Molecular Weight PolyEthylene fiber), a long chain, high strength, oriented strand, synthetic fiber with very high strength as well as high abrasion resistance. This fiber is also known as HMPE (High Modulus PolyEthylene). Dyneema is available in a number of formulations, SK-60, SK-75, SK-78, SK-90, etc. Each exceedingly stronger and more expensive.

Honeywell International produces a similar UHMWPE fiber, marketed as Spectra®

Reviews (1 reviews) Hide Reviews Show Reviews

  • 5
    The perfect traveler line, great for high load applications

    There are many versions of 'Spectra/Dyneema' line, and it all gets a bit confusing. This 5mm version is low stretch, long lasting, and holds knots well. Like all spectra, the ends are a bit hard to keep under control when you cut and melt the line, so make sure to put some tape over the section you are cutting beforehand. Otherwise, this is a great line for all dinghy applications. Laser travelers and high load applications anywhere.
    Reviewed by George Yioulos, West Coast Sailing President

    - Staff Review