Rope Characteristics

Ultrex Plus is a double braid of Dyneema SK75 core, treated with Maxijacket coating for enhanced toughness. Sleeved with high tenacity polyester. Spliceable utilizing conventional high modulus splice technique, or the new Yaletuck splice, which shortens the bury portion and minimizes the length of the larger diameter associated with the splice. All strengths shown are for spliced line.

Ultrex Plus is identified by green and yellow strands braided into the sleeve structure. The date of manufacture is denoted by coloured yarn between the core and the sleeve.


 
Diam. Inches Average Break Strength Pounds Minimum Break Strength Pounds Max Working Load 5:1 Weight Pounds per 100 ft.
3/8 11,500 10,350 2,300 3.8
7/16 14,500 13,050 2,900 4.9
1/2 20,000 18,000 4,000 6.7
9/16 25,000 22,500 5,000 8.4
5/8 30,000 27,000 6,000 10.5
3/4 45,000 40,500 9,000 14.0
7/8 60,000 54,000 12,000 20.4
1 75,000 67,500 15,000 25.6
1-1/8 98,000 88,200 19,600 32.7
1-1/4 120,000 108,000 24,000 37.5
1-5/16 148,000 133,200 29,600 45.7
1-1/2 172,000 154,800 34,400 61.3
1-5/8 184,000 165,600 36,800 71.7
1-3/4 230,000 207,000 46,000 85.6
2 285,000 256,500 57,000 108.6

Elastic Elongation

The coloured area under the curve represents the rope’s energy absorption capability.

Green working 219 ft. lbs/lb
Red ultimate 3,617 ft. lbs/lb.

Dielectric Strength

The maximum allowable leakage for new dry Ultrex Plus is 1.0 milliamperes at 60K DC Volts when tested in accordance with Yale Cordage Test Method DTP-185. Caution: Absorbed and entrained moisture or impurities will dramatically increase a rope's conductivity.