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Proton®-8 uses Dyneema® fiber for high strength and low weight, with a polyester overlay to provide the heat resistance and grip necessary for use on bitts and capstans. Its flexible, torque-free, 8-strand construction performs well on both single- and split-drum winches. Proton®-8 is Samthane coated, which increases wear life.

  • Easy to splice
  • Firm, yet flexible
  • Heat resistant
  • High coefficient of friction
  • High strength-to-weight ratio
  • Low water absorption
  • Solid grip on winch drums, bitts, and capstans
  • Torque-free construction
  • Barge and Dredge Working Line
  • General Working Line / Vessel Mooring
  • H-Bitt Working Line / Tug Assist
  • Other Fishing Line
  • Primary Mooring Line / Non-jacketed
  • Secondary Mooring Line
  • Trawl or Bridle Line
  • Tug Mainline
  • Winch Line / Tug


Specific Gravity:

Elastic Elongation Percentage:
At % of break strength
10%: 0.58%
20%: 0.87%
30%: 0.96%

Splicing Procedures Required:
8-Strand Class II
Diameter Circumference lbs/100ft Avg. Strength Min. Strength Diameter Circumference kg/100m Avg. Strength Min. Strength