Key Features
- High Buoyancy: Floats on water for easy retrieval and safer handling.
- Rotor and Mildew Resistant: Withstands harsh marine environments without degradation.
- Lightweight Construction: Reduced weight for convenient line handling and lower shipping costs.
- High Tensile Strength: Reliable breaking load for robust mooring and towing tasks.
- UV Stabilized: Extended service life even under prolonged sunlight exposure.
- Flexible and Workable: Easily spliced, knotted, and coiled for versatile shipboard use.
Technical Specifications
| Property | Value |
|---|---|
| Material | 100% Virgin Polypropylene |
| Construction | 3-Strand Laid Rope / Double Braid |
| Diameter Range | 20 mm – 100 mm |
| Density | 0.91 g/cm³ |
| Buoyancy | Floats in freshwater and saltwater |
| Tensile Strength | Varies by diameter (approx. 6,000–60,000 kg) |
| Elongation at Break | 15–20% |
| UV Resistance | With stabilizers | Good |
| Working Temperature | -30°C to +70°C |
| Standards | Complies with international marine rope standards |
Frequently Asked Questions
What is a polypropylene hawser used for?
Polypropylene hawsers are primarily used as mooring lines, towing lines, anchor warps, and general utility lines on ships and offshore platforms. Their buoyant nature makes them especially useful for harbor operations and rescue work.
What are the advantages of polypropylene over nylon ropes?
Polypropylene is lighter and floats on water, whereas nylon absorbs water when submerged. Polypropylene also offers better resistance to chemical degradation and mildew, making it a cost-effective alternative when high elasticity and shock absorption are not the primary requirements.
How do I choose the right diameter for my application?
Selection depends on the working load, breaking strength, and safety factor required. Always consult the rope's load capacity chart and ensure the diameter meets the specifications of your winch, bollard, or cleat. When in doubt, select a larger diameter for a higher safety margin.
Can polypropylene hawsers be spliced or knotted?
Yes, polypropylene rope is easily spliced using standard splice techniques. However, since PP is relatively stiff, certain knots may not hold as securely as with nylon. Splicing is recommended for permanent terminations to maintain full strength.
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