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Product Description
Double Braided PET and PP Rope
Product Introduction:
The Double Braided PET and PP Rope is a high-performance marine rope designed for a wide range of demanding applications, including mooring, anchoring, towing, and offshore operations. It is manufactured using advanced double-braiding technology, combining the strengths of PET (polyethylene terephthalate, a polyester) and PP (polypropylene) fibers in a unique composite construction. The double-braided design features a braided core for high tensile strength and a braided outer jacket for superior protection against abrasion, UV radiation, and external wear.
The PET component contributes high breaking strength, low elongation, excellent abrasion resistance, and good UV stability. The PP component adds lightness, buoyancy, chemical resistance, and flexibility. By carefully balancing these two materials, the rope achieves a combination of properties that is difficult to match with a single-fiber rope: it is strong yet lightweight, durable yet flexible, and resistant to seawater, rot, mildew, and many common marine chemicals. The rope is easy to splice, coil, and handle, reducing crew fatigue and improving operational efficiency.
Depending on the blend ratio, the rope can be designed to float or sink, making it adaptable to different marine applications. It is an excellent upgrade and replacement for traditional 3-strand and 8-strand ropes. The rope is widely used in ship mooring and anchoring, tug and towing, ocean transportation, port handling and cargo securing, offshore oil exploration, defense and naval operations, fishing, and mining. It is available in standard white and can be customized in other colors. Classification society certificates are available to meet international marine procurement standards.
Main Performance:
| Material | Polyester / polypropylene |
| Spec.Density | 0.99 Floating |
| Melting Point | 260℃/165℃ |
| Abrasion Resistance | Good |
| U.V.resistance | Good |
| Temperature resistance | 80℃ max |
| Chemical resistance | Good |
Technology Comparison:

Parameter Table:
| Specification | Polyester / PP | ||
| Dia. | Cir. | Ktex | KN |
| Linear density | Breaking strength | ||
| 4 | 1/2 | 9.0 | 2.6 |
| 6 | 3/4 | 20.2 | 5.8 |
| 8 | 1 | 36 | 10 |
| 10 | 1-1/4 | 56 | 16 |
| 12 | 1-1/2 | 81 | 23 |
| 14 | 1-3/4 | 110 | 31 |
| 16 | 2 | 143 | 41 |
| 18 | 2-1/4 | 181 | 52 |
| 20 | 2-1/2 | 224 | 64 |
| 22 | 2-3/4 | 271 | 77 |
| 24 | 3 | 325 | 93 |
| 28 | 3-1/2 | 430 | 124 |
| 32 | 4 | 576 | 162 |
| 36 | 4-1/2 | 732 | 216 |
| 40 | 5 | 902 | 266 |
| 44 | 5-1/2 | 1093 | 324 |
| 48 | 6 | 1300 | 380 |
| 52 | 6-1/2 | 1525 | 443 |
| 56 | 7 | 1773 | 513 |
| 60 | 7-1/2 | 2035 | 584 |
| 64 | 8 | 2310 | 665 |
| 72 | 9 | 2924 | 846 |
| 80 | 10 | 3610 | 1036 |
| 88 | 11 | 4371 | 1254 |
| 96 | 12 | 5207 | 1501 |
| 104 | 13 | 6112 | 1758 |
| 112 | 14 | 7082 | 2043 |
| 120 | 15 | 8127 | 2328 |
Key Features:
1.Double Braided Construction: Braided core and braided jacket provide high strength, balanced load distribution, and excellent shape retention.
2.PET and PP Composite: PET offers strength, low elongation, and abrasion resistance; PP provides lightness, buoyancy, and chemical resistance.
3.High Breaking Strength: Designed to deliver reliable performance under heavy loads.
4.Excellent Abrasion Resistance: The outer jacket protects the core against wear from chocks, fairleads, winches, and quay edges.
5.UV and Weather Resistant: Suitable for long-term exposure to sunlight, saltwater, and harsh weather.
6.Chemical Resistance: Good resistance to seawater, rot, mildew, and many common marine chemicals.
7.Flexible and Easy to Handle: Soft, smooth, and easy to splice, coil, and operate on winches and capstans.
8.Adjustable Buoyancy: Depending on the blend ratio, the rope can be made to float or sink, adapting to different operational needs.
9.Wide Application: Ideal for naval equipment, ship outfitting, ocean transportation, offshore oil, mining, fishing, and more.
Applications:
1.Ship Mooring and Anchoring: Main mooring lines, spring lines, breast lines, head lines, stern lines, and anchor rodes for commercial vessels, naval ships, and workboats.
2.Tug and Towing Operations: Main towlines, bridles, pendant lines, and escort lines for harbor tugs, ocean-going tugs, and salvage operations.
3.Ocean Transportation: Barge towage, deck cargo lashing, ship-to-ship transfer, and securing heavy project cargo.
4.Port Handling and Cargo Securing: Mooring lines, guide lines, tag lines, fender lines, and cargo lashing in terminals and shipyards.
5.Offshore Oil Exploration: Anchor handling, rig mooring, platform supply, and offshore installation support.
6.Defense and Naval Operations: Berthing, mooring, replenishment-at-sea, rescue, and target towing lines for warships, submarines, and auxiliaries.
7.Fishing and Mining: Net lines, mooring lines, haulage ropes, and general utility ropes.
Color Options:
*Standard Color: White.
*Custom Colors: Available upon request, including red, orange, yellow, green, blue, grey, and other specified colors. High-visibility colors can be produced for improved safety.
Certifications:
Our ropes are manufactured under strict quality control systems and can be supplied with classification society approval certificates from leading international bodies such as DNV, ABS, LR, BV, and CCS upon request. These certifications ensure full compliance with international maritime regulations, port state controls, and insurance underwriter requirements, giving you complete operational peace of mind.