3 Strands Twisted Polypropylene Rope PP Danline Marine Rope Floating Rope
1.General Description
QINGDAO JINCHENG MARITIME mooring rope series includes nylon, polypropylene filament, polypropylene, polypropylene/polyester blend, polyester and other varieties, which are widely used, with high strength, low elongation, wear resistance, corrosion resistance and other advantages, soft and smooth, easy to operate, and can also be used to make special anti-static ropes. The products are mainly used in ships, fishing, port loading and unloading, power construction, oil exploration, sports goods, national defense research and other fields.
- Inherent Floating Ability: Made from lightweight polypropylene (PP) material, this rope has a density lower than water, enabling it to float on the surface of both freshwater and saltwater. Unlike sinking ropes (e.g., nylon), it avoids submerging and tangling with underwater obstacles like rocks, 水草 (aquatic plants), or seabed debris—critical for maintaining visibility and easy retrieval in marine environments.
- 3-Strand Twisted Structure for Balanced Strength & Flexibility: The classic 3-strand twisted design distributes tension evenly across each strand, delivering reliable tensile strength for light to medium marine tasks. This structure also keeps the rope flexible and easy to handle, allowing for quick knot-tying, coiling, and adjustment—essential for on-deck operations where efficiency matters.
- Excellent Resistance to Saltwater, Chemicals, and Mildew: PP Danline marine rope is highly resistant to degradation from saltwater, making it suitable for long-term use in coastal or offshore settings. It also repels common marine chemicals and prevents mildew/mold growth, as polypropylene does not absorb moisture. This resistance ensures the rope retains its structural integrity and performance, even after prolonged exposure to harsh marine elements.
- Good Abrasion Resistance for Daily Marine Wear: The twisted 3-strand construction creates a durable outer surface that withstands friction against boat hulls, docks, metal cleats, or rocky shorelines. It resists fraying and strand breakage from repeated contact with hard surfaces, ensuring longevity in high-use scenarios like daily docking or mooring.
- Lightweight & Low Water Absorption: Compared to heavier marine ropes (e.g., polyester or nylon), this PP rope is lightweight, reducing user fatigue during handling, carrying, or deploying. Additionally, its non-absorbent nature means it does not gain weight from water absorption—even after prolonged immersion—keeping it easy to manage and preventing unnecessary strain on equipment like winches or cleats.
- Small Boat Docking & Mooring: Ideal for docking and mooring small recreational vessels (e.g., kayaks, canoes, small sailboats, or fishing boats) in marinas, lakes, or coastal areas. Its floating property ensures the rope stays visible and accessible, while saltwater resistance and flexibility make it easy to secure to docks or buoys without tangling underwater.
- Marking Lines for Marine Areas: Used to mark temporary or permanent marine zones, such as swimming areas, no-wake zones, fishing boundaries, or underwater hazards (e.g., reefs, shallow spots). Its floating ability keeps the line visible on the water surface, and resistance to mildew/saltwater ensures it remains functional for extended periods, even in harsh outdoor conditions.
- Fishing Gear & Angling Applications: Suitable for fishing-related tasks, such as tying fishing nets, securing bait buckets, or creating temporary lines for holding catch. Its lightweight design avoids weighing down gear, and resistance to saltwater prevents corrosion—making it a reliable choice for both freshwater and saltwater fishing trips.
- Water Sports & Recreational Activities: Perfect for water-based recreational use, including towing inflatable toys (e.g., water tubes, rafts), setting up temporary swimming ropes, or marking paths for kayaking/canoeing tours. Its floating nature ensures safety (users can easily spot and avoid the rope), and flexibility allows for quick setup and adjustment.
- Light-Duty Marine Equipment Securement: Used to secure light on-deck equipment, such as fenders, life jackets, small coolers, or paddle storage. Its tensile strength handles the weight of light gear, and low water absorption means it won’t become heavy or cumbersome—even after exposure to rain or splashes. It keeps equipment organized and secure during short boating trips.

2. Main performance
| Material | Polyamide Multifilament | Polyamide Yarn | Polypropylene Multifilament | Polypropylene | Polyester | Polypropylene and Polyester Mixed |
| Spec.Density | 1.14 no floating | 1.14 not floating | 0.91 no floating | 0.91 Floating | 1.27 no floating | 0.95 Floating |
| Melting Point | 215℃ | 215℃ | 165℃ | 165℃ | 260℃ | 165℃/260℃ |
| Abrasion Resistance | Very Good | Very Good | Medium | Medium | Good | Good |
| U.V.Resistance | Very Good | Very Good | Medium | Medium | Good | Good |
| Temperature resistance | 120℃max | 120℃max | 70℃max | 70℃max | 120℃max | 80℃max |
| Chemical resistance | Very Good | Very Good | Good | Good | Good | Good |
3.Technology Comparison
Coil length: 220m
Spliced strength:± 10% lower
Weight and length tolerance:± 5%
MBL=Minimum Breaking Load conform ISO 2307
Other sizes available upon request

4.Parameter Table
Specification 规格 | PA Multifilament 锦纶复丝 | PAYarn 锦纶 | PP Multifilament 丙纶长丝 | Polypropylene 丙纶 | Polyester 涤纶 | PET/PP Mixed 丙纶/涤纶混合绳 |
| Dia. | Cir | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN | Ktex | KN |
| 直径 | 圆 周 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 | 线密度 | 破断强力 |
| 4 | 1/2 | 10 | 3.7 | 10 | 2.6 | 6.3 | 2.3 | 6 | 2.1 | 12 | 2.9 | 7.0 | 2.8 |
| 6 | 3/4 | 22 | 7.9 | 22 | 6 | 18 | 6.5 | 17 | 5.9 | 27 | 5.6 | 17.5 | 6.8 |
| 8 | 1 | 40 | 13.8 | 40 | 10.9 | 32 | 11.4 | 30 | 10.4 | 48 | 10.0 | 31 | 11.9 |
| 10 | 1-1/4 | 62 | 21.2 | 62 | 15.7 | 47 | 16.8 | 45 | 15.3 | 76 | 15.6 | 48.5 | 18.2 |
| 12 | 1-1/2 | 89 | 30.1 | 89 | 24.1 | 68 | 23.9 | 65 | 21.7 | 110 | 22.3 | 69.9 | 25.7 |
| 14 | 1-3/4 | 121 | 40.0 | 121 | 33.0 | 95 | 32.9 | 90 | 29.9 | 148 | 31.2 | 95.1 | 34.7 |
| 16 | 2 | 158 | 51.9 | 158 | 42.5 | 121 | 40.7 | 115 | 37.0 | 195 | 39.8 | 124 | 44.8 |
| 18 | 2-1/4 | 200 | 64.3 | 200 | 53.9 | 155 | 51.9 | 148 | 47.2 | 245 | 49.8 | 157 | 56.1 |
| 20 | 2-1/2 | 247 | 79.2 | 247 | 66.7 | 189 | 62.6 | 180 | 56.9 | 303 | 62.3 | 194 | 68.7 |
| 22 | 2-3/4 | 299 | 94.0 | 299 | 80.4 | 231 | 75.0 | 220 | 68.2 | 367 | 74.7 | 235 | 82.1 |
| 24 | 3 | 355 | 112 | 355 | 93.6 | 273 | 87.7 | 260 | 79.7 | 437 | 89.6 | 279 | 96.3 |
| 26 | 3-1/4 | 417 | 129 | 417 | 111.5 | 320 | 101 | 305 | 92.2 | 512 | 105 | 328 | 113 |
| 28 | 3-1/2 | 484 | 149 | 484 | 127 | 373 | 115 | 355 | 105 | 594 | 120 | 380 | 130 |
| 30 | 3-3/4 | 555 | 169 | 555 | 143 | 425 | 132 | 405 | 120 | 682 | 134 | 437 | 148 |
| 32 | 4 | 632 | 192 | 632 | 161 | 483 | 146 | 460 | 132 | 778 | 154 | 497 | 167 |
| 36 | 4 - 1/ 2 | 800 | 240 | 800 | 200 | 614 | 182 | 585 | 166 | 982 | 190 | 629 | 210 |
| 40 | 5 | 987 | 294 | 987 | 241 | 756 | 221 | 720 | 201 | 1215 | 235 | 776 | 257 |
| 44 | 5-1/2 | 1190 | 351 | 1190 | 289 | 924 | 266 | 880 | 242 | 1468 | 275 | 939 | 308 |
| 48 | 6 | 1420 | 412 | 1420 | 338 | 1092 | 308 | 1040 | 280 | 1750 | 329 | 1110 | 364 |
| 52 | 6-1/2 | 1670 | 479 | 1670 | 393 | 1281 | 357 | 1220 | 325 | 2050 | 384 | 1320 | 424 |
| 56 | 7 | 1930 | 550 | 1930 | 450 | 1491 | 408 | 1420 | 371 | 2380 | 439 | 1520 | 489 |