Polypropylene rope

(6 products)

Polypropylene rope is the workhorse of the synthetic ropes: lightweight, weather-resistant, affordable and floating on water. At Prorope you’ll find polypropylene rope in diameters from 4 mm up to 40 mm, in three colours — beige (manila look), orange (signalling) and black (industrial). All our polypropylene rope is ISO-certified, made in Europe and 3-strand twisted for optimum abrasion resistance. With breaking strengths from 300 kg (4 mm) to 20,500 kg (40 mm), there’s a version for every application — from marine, watersports and fishing to construction, agriculture, events and decoration.

Order polypropylene rope per metre — you choose the length yourself. From 24 mm, 220-metre coils are also available on request. Orders placed before 13:00 ship the same day for next-working-day delivery.

Buoyancy FloatsSpecific gravity ~0.91 g/cm³ — always floats. Ideal for lifebuoys and water sports.

Breaking strength 370–20.500 kgMeasured ourselves on our own test bench, from 4 to 12 mm — high strength for the price.

UV resistance HALS-stabilisedHindered Amine Light Stabilizers continuously mop up free radicals — colour and strength are retained.

Rot & mould Fully rot-freeAbsorbs no moisture — no rotting from prolonged contact with water or damp surfaces.

Chemical ExcellentResistant to most acids, bases, oils and solvents. Melting point ~165 °C.

Our range

Polypropylene rope in three colours

Beige

PP rope beigeThe manila look, but weatherproof

The classic look of manila, but colourfast and rot-free. Our most popular variant for events, exhibition stands, stages, outdoor restaurants and theme parks.

DecorationEventsHospitality terracesTheme parksClassic nautical look

View beige PP rope

Orange

PP rope orangeMaximum visibility, international signal colour

Contrasts maximally against almost any background — even at dusk. The standard choice for rescue lines, crowd control, guy lines and marking work zones.

SafetySignallingWater sportsConstruction & agricultureEmergency services

View orange PP rope

Black

PP rope blackThe industrial, aesthetic choice

Visually blends into most surroundings. Popular in technical installations, theatre and event production and professional shipping — where the rope should specifically not stand out.

IndustryTheatre & eventPro shippingTechnical installations

View black PP rope

Measured breaking strength per diameter — our own test bench (3-strand twisted, avg. of 5 tensile tests, no knot · ISO 2307:2019, measured by Otto Tromm)

Diameter	Construction	Breaking strength	≈ kg
4 mm	3-strand laid splitfilm	3.63 kN	370 kg
6 mm	3-strand laid splitfilm	6.58 kN	671 kg
8 mm	3-strand laid splitfilm	10.57 kN	1,077 kg
10 mm	3-strand laid splitfilm	16.19 kN	1,651 kg
12 mm	3-strand laid splitfilm	23.54 kN	2,399 kg

We are still testing 14 to 40 mm. For those sizes we currently use the factory figure (rising to ~20,500 kg at 40 mm); once they have been through the test bench we will replace these with our own measured values.

Our own test-bench data 2026

What our test bench shows for polypropylene rope

Measured by Otto Tromm — 5 tensile tests per rope, no knot, following the ISO 2307:2019 method. Not a copied factory table, but what the rope really does.

01 One knot costs you more than half

In 4 mm twisted PP a single knot more than halved the breaking strength. A second knot added barely any damage — the first knot does virtually all the damage, by concentrating the tension on the outer fibre bundle.

4 mm: 370 kg → 177 kg with one knot (−52%)
Two knots: 164 kg (−56%)

02 Same diameter, 38% difference from construction

Two ropes of exactly 6 mm, both polypropylene: the 3-strand twisted rope reached 671 kg, the same material as braided rope without a core stalled at 417 kg.

6 mm twisted: 671 kg — 6 mm braided: 417 kg (−38%)

03 Twisted rope warns before failure

Twisted PP failed gradually in our tests: one strand snaps first, then the rest. The braided rope broke with a lot of elongation and a loud bang all at once.

With a knot the rope never broke completely in one go

04 10 years old, and still 94% strong

A 10-year-old 8 mm PP rope, stored dry and out of direct sunlight, retained 1,010 kg versus 1,077 kg new. The big enemy is not time, but direct UV.

8 mm after 10 years: 1,010 kg vs 1,077 kg new (−6%)

Effect of knots — 4 mm twisted PP

Termination	Breaking strength	Retention
Without knot	370 kg	100%
One knot	177 kg	48%
Two knots	164 kg	44%

Practical advice: a splice or an eye with thimble retains virtually the full breaking strength, a knot does not. Always finish load-bearing ends with a splice.

Comparison

PP vs polyester, nylon and manila

Property	Polypropylene	Polyester	Nylon	Manila
Floats on water	Yes	No (sinks)	No (sinks)	No
Specific gravity	~0.91 g/cm³	~1.38 g/cm³	~1.14 g/cm³	~1.38 g/cm³
Breaking strength	Good	Very high	Highest	Average
Elongation under load	Low–average	Low–average	High (shock absorption)	Average
UV resistance	Good (stabilised)	Excellent	Average	Limited
Water resistance	Excellent	Excellent	Loses 10–15% when wet	Limited
Chemical resistance	Excellent	Good	Limited	Limited
Price per metre	Low	Average	High	Average
Best application	General, watersports, signalling	Tight lines, shipping	Anchor lines, shock loads	Classic outdoor decoration

Short conclusion: polypropylene offers the best value for money, floats and is the ideal all-rounder. Choose polyester for minimal elongation and top performance, nylon when shock absorption is crucial, and manila when a natural look is required.

Applications

Where polypropylene makes the difference

Shipping & Water sportsFloats and absorbs no moisture

Rescue lines, heaving lines and buoy fastenings
Fishing lines and fender lines
8–14 mm for water sports · 16–24 mm for fishing and coastal shipping

Construction, Industry & LogisticsStrong, wear-resistant and light — black is most common here

Lashing, lifting and load securing
Scaffolding work
Orange where visibility contributes to safety

Safety & SignallingOrange — high contrast, clearly visible even at dusk

Crowd control and walking-route marking
Hazard-zone cordoning
Emergency response

Agriculture & HorticultureRot-free, UV-resistant and affordable in long lengths

Bundling sheaves and tying up plants
Crop supports
Cordoning off field edges

Decoration & EventsBeige — the manila look without sensitivity to moisture and mould

Permanent cordons on hospitality terraces
Exhibition stands and event venues
Theme parks

Outdoor & CampingStrong, weatherproof and lightweight

Guy lines (orange for visibility)
Tarp systems
Hammock fastenings

Technical information

Specifications, points of attention & diameters

Technical specifications

Material	Polypropylene (splitfilm)
Construction	3-strand laid
Specific gravity	~0.91 g/cm³ — floats on water
Melting point	~165 °C
Elongation at break	~21% (splitfilm) · >100% (PPMF multifilament)
UV resistance	Good (UV-stabilised with HALS)
Water resistance	Excellent, absorbs no moisture
Shrinkage	None
Resistant to	Mould, rot, most acids/bases, oils
Not resistant to	High temperatures, open fire, strong oxidisers
Production / test	European production · ISO 2307:2019
Colours	Beige (manila), orange, black

Points of attention when using

1 Termination: finish load-bearing ends with a splice or eye with chafe sleeve. One knot costs 52% of breaking strength (own measurement, 4 mm).
2 Construction: choose laid splitfilm for strength and dimensional stability; PPMF multifilament for softness and colour. Same diameter can differ by 38%.
3 Temperature: melting point ~165 °C. Avoid local friction heat, open fire and strong oxidisers.
4 Storage: dry and out of direct sunlight. Stored this way, our 10-year-old rope lost only 6% strength.

Available diameters — 4 to 40 mm

Fine 4–8 mm Cord, binding, guy lines and signalling.

Medium 10–16 mm Watersports, lashing, demarcation and general use.

Heavy 18–40 mm Professional shipping, fishing, lifting and towing. From 24 mm also available as a 220 m coil on request.

Available per metre — you choose the length. Our rope specialists will be happy to calculate with you based on the measured values.

Order PP rope at Prorope

By the metre, from our own stock

European production, direct from our own stock and tested in-house. We supply consumers, water-sports users, event companies, industry and shipping across Europe.

Available by the metre — no waste, choose your own length

Ordered before 13:00 = shipped the same day

Our own breaking-strength tests — measured by Otto Tromm

European production — no anonymous bulk imports

View the full range

Three colours available — beige, orange and black.

Need personal advice?

Our rope specialists are happy to help by email or phone with the right diameter, colour or finish.
+31-77 208 6139 · info@prorope.com

Frequently asked questions

Polypropylene rope FAQ

How much breaking strength do I lose with a knot in polypropylene rope?

In 4 mm twisted PP we measured 52% loss from one knot (from 370 kg to 177 kg) and 56% from two knots. The first knot does virtually all the damage. A splice or an eye with thimble, by contrast, retains almost the full strength. Always finish load-bearing ends with a splice rather than a knot.

How strong is polypropylene rope after years outdoors?

A 10-year-old 8 mm rope, stored dry and out of direct sunlight, retained 1,010 kg on our test bench — 94% of the 1,077 kg of a new one. Correctly stored polypropylene therefore ages barely at all. The biggest enemy is not time but direct UV, which is why our ropes are UV-stabilised.

Does the construction of polypropylene rope affect its strength?

Yes, and more than many people think. At an equal 6 mm, twisted rope reached 671 kg and braided rope without a core 417 kg — a difference of 38%. Twisted rope also fails gradually (one strand snaps first, a warning), whereas the braided rope broke all at once in our test with a loud bang.

Does polypropylene rope break suddenly or gradually?

Twisted polypropylene almost always gives a warning in our tests: one strand snaps first, and even after the third break there is often still a strand intact. That makes twisted rope safer in applications where a sudden break is dangerous, compared with constructions that fail all at once.

Does polypropylene rope float on water?

Yes, polypropylene has a specific gravity of about 0.91 g/cm³, lower than that of water (1.0 g/cm³). As a result it always floats, even under some load. That makes it the standard choice for lifebuoys, heaving lines and water sports. Polyester and nylon, by contrast, sink.

What is the difference between polypropylene and polyester rope?

Polypropylene is lighter, cheaper and floats on water; polyester is stronger and more UV-resistant. For general applications, water sports and signalling, choose polypropylene rope. For maximum strength with minimal elongation (such as sailing lines or taut mooring lines), choose polyester.

Is polypropylene rope UV-resistant?

Our polypropylene rope is treated with UV stabilisers (HALS), so it retains colour and strength well under prolonged sun exposure. This makes it suitable for outdoor use. Polyester scores even better on UV; for top performance under intensive sunlight, choose polyester.

What is the difference between polypropylene and nylon rope?

Nylon is stronger and has high elongation, so it absorbs shocks — ideal for anchor lines and tow ropes. Polypropylene is cheaper, floats on water and has better chemical resistance. Nylon loses 10–15% strength when wet; polypropylene retains its full strength.

Is polypropylene rope resistant to chemicals?

Polypropylene has excellent chemical resistance: it withstands most acids, bases, oils and solvents. On this point it scores better than polyester and nylon. Do avoid strong oxidisers and high temperatures (melting point ~165 °C).

Polypropylene rope

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