- Superior Corrosion Resistance to Saltwater & Moisture: Composed of polypropylene (PP), this rope is inherently non-absorbent and resistant to saltwater, freshwater, and humidity. Unlike materials that degrade or rust in marine environments, it avoids moisture-related issues such as mildew growth, weight gain, or fiber rot—even when continuously submerged or exposed to salt spray. This makes it highly durable for long-term use in coastal, offshore, or freshwater marine settings.
- Wide Diameter Range for Versatile Loads (3mm-60mm): Available in diameters from 3mm to 60mm, the rope caters to diverse marine load requirements. Smaller diameters (3mm-10mm) excel at light tasks like securing small gear, while larger diameters (20mm-60mm) handle heavy-duty applications such as mooring mid-sized vessels or towing light cargo. The 3-strand construction ensures consistent strength across all diameter options, with thicker strands in larger sizes enhancing load-bearing capacity.
- Lightweight & Buoyant for Easy Water Handling: PP’s low density gives the rope natural buoyancy, allowing it to float on water surfaces—critical for marine tasks where rope visibility and quick retrieval are essential (e.g., marking fishing areas, recovering gear). Its lightweight nature also reduces user fatigue during handling, making it easy to coil, uncoil, or transport on boats, even for larger diameter variants.
- Good Abrasion Resistance for Rough Marine Contact: The tightly twisted 3-strand structure forms a tough outer surface that resists wear from contact with boat hulls, metal cleats, piers, rocky seabeds, or marine hardware (e.g., winches, hooks). It maintains structural integrity even after repeated friction, avoiding fraying or strand breakage that would compromise safety in tasks like docking or securing equipment.
- Cost-Effective Durability for Marine Operations: PP Danline rope offers a balance of durability and affordability compared to premium marine rope materials. It withstands harsh marine conditions (UV rays, saltwater, temperature fluctuations) without frequent replacement, making it a cost-efficient choice for both commercial marine operations (e.g., small fishing fleets) and recreational boaters who require reliable performance on a budget.
- Recreational & Small Vessel Mooring: Suitable for mooring small to mid-sized boats (e.g., kayaks, canoes, small fishing boats) at docks, marinas, or shorelines. Smaller diameters (3mm-12mm) work for lightweight vessels, while larger diameters (15mm-30mm) secure heavier craft. Its corrosion resistance ensures longevity in saltwater, and buoyancy prevents it from sinking if accidentally detached.
- Fishing Gear Securement & Netting: Used to secure fishing gear such as tackle boxes, bait buckets, or fishing rods on boat decks. Smaller 3mm-8mm ropes also serve as reinforcement for lightweight fishing nets (e.g., freshwater nets) or as marker lines to indicate net positions. Its non-absorbent property keeps gear dry, and abrasion resistance stands up to friction from netting or hardware.
- Light-Duty Marine Towing & Cargo Handling: Ideal for towing small items like inflatable rafts, bait containers, or light cargo (e.g., tools, supplies) between boats or from boat to shore. Diameters 10mm-20mm handle these light loads effectively, while the rope’s lightweight design makes towing easy. Its buoyancy ensures towed items stay visible on the water.
- Dock Lines & Fender Lines: Functions as dock lines to tie boats to piers or pilings, absorbing minor shocks from wave movement to protect boat hulls. It also serves as fender lines—securing fenders (buoys) to boat sides to prevent collisions with docks or other vessels. The 3-strand structure’s flexibility allows easy knotting (e.g., cleat knots), and UV resistance prevents degradation from prolonged sun exposure on docks.
- Marine Marker Lines & Buoy Anchoring: Used as marker lines to indicate underwater hazards (e.g., rocks, shallow areas), fishing spots, or swimming zones. Smaller 3mm-6mm ropes attach to buoys, keeping markers visible above water due to the rope’s buoyancy. Larger 25mm-60mm ropes can anchor small buoys in calm to moderate waters, with their corrosion resistance ensuring long-term reliability in aquatic environments.

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 |