| Product | Strength Scale 1-5 (5 = strongest, diameter to diameter) |
Elastic Elongation at Working Load % | Weight Scale 1-5 (5 = heaviest, diameter to diameter) |
Working Energy Absorption Ft Lbs/Lb of Rope |
Maximum Energy Absorption Ft Lbs/Lb of Rope |
Rope Average Specific Gravity g/cc |
Splice Complexity Scale 1-5 (5 = most complex) |
Dielectric Leakage, New/Dry, at 100 kV AC, 2ft. Spacing, in Micro-Amperes*** (250 Max allowable) |
|---|---|---|---|---|---|---|---|---|
| Aracom Miniline | 2.9 | 0.6 | 4.0 | 100 | 4,906 | 1.40 | 5 | NA |
| Aracom T | 3.1 | 0.7 | 4.4 | 157 | 4,409 | 1.40 | 3 | NA |
| Aracom 100 | 3.8 | 0.9 | 3.9 | 426 | 8,144 | 1.44 | 1 | <250 |
| Crystalyne | 2.7 | 0.5 | 4.3 | 187 | 3,403 | 1.40 | 3 | <100 |
| Double Esterlon | 1.4 | 2.2 | 3.9 | 291 | 7,711 | 1.38 | 2 | <20 |
| Kernmaster | 1.2 | 6.2 | 3.8 | 622 | 9,775 | 1.23 | 3 | >500 |
| Lugger Line | 1.0 | 2.2 | 2.4 | 330 | 11,400 | 0.95 | 1 | <100 |
| Maxibraid | 3.5 | 0.7 | 3.3 | 226 | 6,342 | 0.97 | 1 | <100 |
| Maxibraid Plus | 2.7 | 0.6 | 3.7 | 115 | 4,295 | 1.18 | 3 | <100 |
| Mega Max | 2.9 | 0.5 | 2.7 | 318 | 8,300 | 0.97 | 3 | <100 |
| Nylon Brait | 1.3 | 10.0 | 2.9 | 1,426 | 23,680 | 1.14 | 3 | NA |
| Oceanographer’s Brait | 1.3 | 17.5 | 2.9 | 2,739**** | 26,074 | 1.14 | 3 | NA |
| Optimus Rope | 1.8 | 3.5 | 4.6 | 351 | 9,915 | 1.38 | 1 | <100 |
| PE-12 | 1.7 | 3.0 | 4.3 | 406 | 8,738 | 1.38 | 1 | <100 |
| Polydyne | 1.5 | 5.1 | 3.8 | 576 | 11,187 | 1.24 | 2 | >500 |
| PolyPlus Braid | 1.1 | 3.4 | 3.1 | 395 | 8,228 | 1.25 | 1 | <100 |
| Portland Braid | 1.3 | 2.0 | 4.0 | 265 | 5,929 | 1.38 | 2 | <20 |
| Shark Byte 12 | 1.2 | 1.2 | 2.2 | 296 | 3,884 | 1.10 | 1 | NA |
| Shark Byte 8 | 0.4 | 3.3 | 2.7 | 478 | 10,365 | 1.14 | 3 | NA |
| Tech-Kern | 2.8 | 0.7 | 3.8 | 233 | 4,571 | 1.44 | 3 | NA |
| Ultrex Plus | 2.9 | 0.5 | 3.7 | 140 | 5,428 | 1.18 | 3 | <100 |
| Ultrex | 5.0 | 0.6 | 3.1 | 318 | 8,300 | 0.97 | 1 | <100 |
| Uniline | 1.4 | 3.5 | 5.0 | 262 | 5,230 | 1.38 | 5 | <50 |
| Unitrex XS 8 | 3.5 | 0.5 | 4.6 | NA | NA | 1.10 | 4 | <50 |
| Unitrex XS Max Wear | 3.5 | 0.5 | 4.6 | 247 | 6,893 | 1.10 | 5 | <50 |
| Vectrus | 4.3 | 0.6 | 3.8 | 232 | 4,446 | 1.40 | 1 | <100 |
| Yalex | 1.7 | 3.0 | 4.5 | 409 | 10,700 | 1.38 | 1 | <100 |
| Yalon | 1.1 | 7.0 | 3.5 | 796 | 11,871 | 1.14 | 2 | >2000 |
* Quick splice method available which reduces the break strength but also reduces the splice complexity to 1
** NA in Dielectric leakage indicates that the product is not recommended for use in dielctric situations due to the ropes potential moisture gain
***Absorbed or entrained moisture or impurities will increase a ropes conductivity dramatically
**** Oceanographers energy absorption is at a WL of 30%
Fiber Comparison Data
| Product | Strength Scale 1-5 |
Tenacity g/d |
Specific Gravity g/cc |
Weight Scale 1-5 |
Average Water Absorption % @65% RH |
Melting Point °F (©) |
Elastic Elongation Scale1-5 |
|---|---|---|---|---|---|---|---|
| Nylon (NY) | 1.5 | 9.2 | 1.14 | 2.5 | 5.0 | 460 (240) | 5 |
| Polyester (PET) | 1.4 | 9.2 | 1.38 | 4.3 | 0.4 | 480 (255) | 3 |
| Polypropylene (PP), Polyethylene (PE) | 1.0 | 6.5 | 0.93 | 1.0 | 0.0 | 330 (165) | 4 |
| Co-Polymer (PP/PE) | 1.1 | 7.5 | 0.93 | 1.0 | 0.0 | 330 (165) | 3 |
| HMPE* (Spectra™, Dyneema™) | 4.8 | 36.0 | 0.97 | 1.3 | 0.0 | 300 (150) | 1 |
| Aramid (Technora, Twaron, Kevlar) | 3.8 | 28.0 | 1.44 | 4.8 | 4.0 | **900 (500) | 2 |
| Vectran (LCP) | 3.9 | 28.0 | 1.40 | 4.4 | 0.0 | 625 (330) | 1 |
| Zylon PBO | 5.0 | 45.0 | 1.56 | 5.0 | 1.3 | ***1200 (650) | 1 |
* High Modulus Polyethylene ** Chars *** Decomposition temperature
For computing energy-absorption requirements, refer to example in “Dynamic Loading.”
For computing weight in sea water: (Wt. in Air) – (Wt. in Air)(1.03) / (Specific Gravity of Rope)
Components of Elongation
* Hysteresis refers to a recoverable portion of stretch over a period of time after a load is released.
