3 /4 Strand 8 MM PP Polypropylene Twisted Braided Packaging Rope for Fishing Marine

1.PHOTOS

2. Main performance

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

Production Process

1. Polypropylene Resin Melting & Extrusion: Raw polypropylene (PP) resin pellets are fed into an extruder, where they are heated to a molten state (typically 180–220°C). The molten PP is then forced through a spinneret—a metal plate with tiny holes—to form continuous, thin PP filaments (monofilaments). These filaments are cooled rapidly using air or water to solidify and maintain their structural integrity.
2. Filament Drawing & Texturing: The solidified PP monofilaments are pulled (drawn) through a series of rollers at controlled speeds to stretch and align the polymer molecules. This step enhances the filaments’ tensile strength and reduces brittleness. Optional texturing may be applied to improve the filaments’ flexibility and grip, ensuring better performance in twisted braided construction.
3. Strand Formation (3/4-Strand Preparation): The drawn PP filaments are grouped and twisted together to form individual strands—either 3 or 4 strands based on the final rope design. Each strand is twisted at a consistent tension to ensure uniformity; the twisting direction (S-twist or Z-twist) is controlled to prevent unraveling during subsequent steps.
4. Twisted Braiding of Strands: The 3 or 4 pre-formed PP strands are fed into a braiding machine. The machine interlaces the strands in a twisted braid pattern—combining the stability of twisting with the flexibility of braiding. The 8mm diameter is maintained by precise control of strand tension and braiding speed, ensuring the rope meets the specified thickness without gaps or irregularities.
5. Heat Setting & Finishing: The newly braided rope is passed through a heat-setting oven to stabilize its structure, reducing shrinkage and maintaining the braid’s shape over time. After cooling, the rope is cut to standard lengths, and its ends are treated (e.g., heat-sealed or trimmed) to prevent fraying. A final quality check ensures consistent diameter, strength, and structural integrity before packaging.

Key Features

• Lightweight with Buoyancy: Made from polypropylene, this 8mm rope is inherently lightweight, making it easy to handle, transport, and store. Critically, it is buoyant in water—unlike heavier synthetic ropes—so it floats rather than sinking, ideal for applications where rope retrieval or visibility on water is essential.
• 3/4-Strand Twisted Braid for Balance: The combination of twisted strands and braided construction delivers balanced performance: the twisted strands boost tensile strength, while the braid enhances flexibility and resistance to kinking. This structure also ensures the 8mm rope maintains its shape under load, avoiding stretching or deformation.
• Weather & Chemical Resistance: PP is naturally resistant to UV radiation, rain, humidity, and most common chemicals (e.g., mild detergents, salt sprays). This makes the rope suitable for outdoor or harsh environments—its fibers won’t degrade, discolor, or weaken when exposed to sunlight, moisture, or minor chemical contact.
• Abrasion Resistance for Durability: The twisted braid structure creates a dense, tough outer surface that resists abrasion from rough surfaces (e.g., concrete, metal, or rock). Even with repeated friction, the 8mm rope retains its integrity, reducing fraying and extending its service life.
• Low Water Absorption: Unlike water-absorbent ropes, PP absorbs minimal moisture (less than 1% by weight). This means the rope won’t become heavier or weaker when wet, and it dries quickly after exposure to water—ideal for applications where wet conditions are common.

Typical Applications

• Recreational Water Activities: Used for water sports like kayaking, canoeing, or paddleboarding—its buoyancy ensures it stays afloat for easy retrieval, while its lightweight design makes it easy to carry. It can secure gear to watercraft, mark swimming areas, or serve as a safety line for casual water use.
• Outdoor Gardening & Landscaping: Ideal for securing plants (e.g., climbing vines, young trees), tying garden structures (e.g., trellises, stakes), or bundling landscaping materials (e.g., branches, mulch bags). Its weather resistance withstands outdoor elements, and the 8mm thickness provides enough strength without damaging delicate plants.
• Lightweight Cargo Securement: Used to secure lightweight cargo (e.g., backpacks, small boxes, or camping gear) to vehicles (e.g., car roofs, bike racks) or outdoor storage areas. The twisted braid’s strength holds cargo in place, while its low water absorption ensures it performs well in rainy weather.
• Pool & Pond Maintenance: Suitable for pool or pond upkeep—securing pool covers, marking underwater obstacles, or tying maintenance tools (e.g., nets, skimmers) to the edge. Its buoyancy and chemical resistance (to pool chemicals like chlorine) make it safe for use in aquatic environments.
• Temporary Fencing & Barriers: Used to create temporary fences or barriers for events (e.g., festivals, backyard parties) or construction sites (e.g., marking off small work zones). The 8mm thickness is visible enough for boundary marking, and its weather resistance ensures it lasts through the duration of temporary use.

Since its establishment in 2005, Qingdao Jincheng Maritime Technology Co., Ltd. has been steadily advancing in the maritime technology field for nearly two decades. The company focuses on the core business of manufacturing marine supplies, always adhering to the concepts of innovation and excellence, and is committed to providing comprehensive and high-quality products and services to the global maritime industry.

In terms of product manufacturing, the company has a rich and diverse product line, covering marine navigation equipment, marine safety protection supplies, marine interior decorations, and various functional accessories for ships. From precise navigation instruments to sturdy and durable life-saving equipment, from comfortable and beautiful cabin interiors to efficient and practical marine tools, every product undergoes strict quality control to ensure compliance with international standards and industry specifications.

The company attaches great importance to technological research and development and innovation. It has formed a research and development team composed of senior maritime engineers, professional technicians, and innovative talents. The team continuously explores cutting-edge technologies, actively introduces new materials and processes, and continuously optimizes product performance to meet the growing intelligent and green demands of the maritime industry. At the same time, the company has established long-term and stable cooperative relationships with many well-known domestic and foreign universities and scientific research institutions. Through the collaborative innovation of industry, university, and research, it accelerates the transformation of scientific research achievements and injects a continuous stream of impetus into the company's development.

With reliable product quality, advanced technological level, and a complete after-sales service system, Qingdao Jincheng Maritime Technology Co., Ltd. has won a good reputation and wide recognition in the industry. Its products not only sell well in major domestic ports and shipbuilding enterprises but also are exported to many countries and regions overseas. The company has established long-term cooperative relationships with many internationally renowned shipping companies. Looking to the future, the company will continue to forge ahead, continuously enhance its core competitiveness, and contribute to the advancement of maritime technology and the development of the global shipping industry.