Ultrex Plus is a double braid constructed of an inner load baring core of Ultra High Molecular Weight Polyethylene (UHMWPE), treated with Maxijacket coating for enhanced toughness. Sleeved with high-tenacity polyester, Ultrex Plus is spliceable, using conventional high-modulus splice techniques or the new Yale tuck splice, which shortens the bury portion and minimizes the length of the larger diameter associated with a bury-type splice.
Braided rope by Yale Cordage is known for its top-quality craftsmanship, innovative design, and steadfast dependability.
Ultrex Plus is used in sailboat racing for halyards, sheets, guys and control lines.
Diameter (Inches) | Average Spliced Break Strength *(Lbs) | Minimum Spliced Break Strength *(Lbs) | Maximum Working Load 5:1 **(Lbs) | Weight (Lbs/100f) |
---|---|---|---|---|
1/4 | 6,000 | 5,400 | 1,200 | 2.4 |
5/16 | 9,500 | 8,550 | 1,900 | 2.9 |
3/8 | 12,700 | 11,430 | 2,540 | 3.8 |
7/16 | 15,300 | 13,770 | 3,060 | 4.9 |
1/2 | 22,000 | 19,800 | 4,400 | 7.3 |
9/16 | 28,000 | 25,200 | 5,600 | 9 |
5/8 | 34,000 | 30,600 | 6,800 | 11.6 |
3/4 | 45,000 | 40,500 | 9,000 | 14.1 |
7/8 | 63,000 | 56,700 | 12,600 | 22.8 |
1 | 75,000 | 67,500 | 15,000 | 26.0 |
1-1/8 | 100,000 | 90,000 | 20,000 | 35.8 |
1-1/4 | 120,000 | 108,000 | 24,000 | 43.5 |
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 |
* Knots and abrupt bends significantly reduce the strength of all ropes and lower the maximum working load.
** Working load is based on static or moderately dynamic lifting/pulling operations. Instantaneous changes in load, up or down, in excess of 10% of the rope’s rated working load constitute hazardous shock load and would void the normal working-load recommendation. Consult Yale Cordage for guidelines for working loads and the safe use of rope.
Specific Gravity: 1.18
Dielectric Strength: The maximum allowable leakage for clean, dry Ultrex Plus is 100 micro-amperes when tested at 100kV per Yale Method 712-1701 Rev 1 "Routine Production Test." Absorbed and entrained moisture or impurities will increase rope’s conductivity dramatically.
Approved Splice Technique: #10015106, #10018007.
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