
- Exceptional Floatability: Made from polypropylene (PP), this rope is inherently lightweight and buoyant, enabling it to float on freshwater and saltwater surfaces. Unlike denser fibers that sink, its floatability eliminates the risk of the rope sinking, tangling with underwater obstacles (e.g., propellers, seabed debris), or becoming hard to retrieve after contact with water. This is critical for marine and shipping tasks where rope visibility and accessibility on water are essential.
- High Resistance to Saltwater, Moisture, and Chemicals: PP is naturally resistant to degradation from saltwater, a key requirement for marine use—this rope does not rot, swell, or lose strength when exposed to salt spray, tidal waters, or prolonged submersion. It also repels moisture, avoiding mold growth or weight gain, and withstands contact with common shipping/harbor chemicals (e.g., mild cleaning agents, fuel residues) without fiber breakdown, ensuring durability in harsh marine and port environments.
- Vibrant 3-Color Visibility (Yellow-Blue-White): The twisted 3-strand structure incorporates yellow, blue, and white colors, creating high visual contrast against water, ship hulls, docks, or coastal landscapes. This enhanced visibility reduces the risk of accidental entanglement (e.g., with boat engines, shipping equipment) and makes the rope easy to locate in low-light conditions (e.g., dawn, dusk, or overcast weather). It also aids in identifying specific rope functions (e.g., marking mooring zones, separating cargo lines) in busy shipping areas.
- Durable 3-Strand Twisted Construction: The 3-strand twisted design provides balanced strength and structural stability. Each strand interlocks tightly, distributing tension evenly across the rope to handle moderate loads (e.g., securing cargo, mooring small vessels) without strand slippage or fraying. The twist also enhances the rope’s resistance to abrasion against rough surfaces like metal ship cleats, concrete docks, or cargo containers, extending its service life with repeated use.
- Lightweight and Easy Handling: PP is a lightweight material, and the 3-strand twisted structure keeps the rope flexible and easy to manipulate. It coils compactly for storage on ships or docks, requires minimal effort to deploy/retrieve, and does not cause operator fatigue during long tasks (e.g., tying down cargo, adjusting mooring lines). Unlike heavier rope types, it remains manageable even when wet, as it does not absorb water or gain significant weight.

- Marine Mooring for Small to Medium Vessels: Used as mooring lines or dock lines for small boats, fishing vessels, or leisure craft. Its floatability ensures it stays visible on water, while saltwater resistance prevents degradation in coastal marinas. The 3-strand twist provides enough strength to secure vessels against mild winds and tides, and the bright colors make it easy to monitor for slack or tangles.
- Shipping Cargo Securement: Ideal for securing lightweight to medium-weight cargo (e.g., packages, small containers, or deck equipment) on ships, ferries, or transport vessels. Its lightweight nature avoids adding unnecessary weight to cargo loads, while the twisted structure maintains tension to keep items stable during rough seas. The moisture resistance also protects the rope (and cargo) from rain or sea spray during transit.
- Harbor and Dock Safety Marking: Used to mark safe zones, hazards, or temporary boundaries in harbors, ports, or marina areas. For example, it can outline swimming areas near docks, mark the edge of shallow water zones, or separate vessel parking lanes. The yellow-blue-white color combination ensures high visibility for boat operators and pedestrians, reducing collision risks in busy port environments.
- Recreational Marine Activities: Suitable for recreational uses like water sports (e.g., marking wakeboarding zones, securing inflatable toys) or camping on coastal shores. Its floatability makes it easy to retrieve if it falls overboard, and the vibrant colors help users track the rope in open water. It can also be used as a temporary anchor line for kayaks, canoes, or small sailboats during short stops.
- Temporary Towing and Assistance in Calm Waters: Used for light-duty towing of small watercraft (e.g., dinghies, jet skis) behind larger boats or assisting stranded vessels in calm, sheltered waters. Its lightweight design allows for easy handling during towing, while the PP material’s durability resists wear from water and boat hardware. The bright colors also make the tow line visible to other vessels, reducing collision risks.

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 |