Dyneema® Rope: UK Manufactured, Supplied Direct to Business

English Braids is an official UK manufacturing partner for Dyneema®, producing SK75, SK78, SK99 and DM20 rope at our ISO-accredited Malvern facility. Our range covers 12-strand single braid constructions from 2mm to 32mm diameter, with pre-stretched XPS variants available for applications requiring minimal elongation under load. Where generic HMPE rope delivers inconsistent breaking strains and higher creep rates, certified Dyneema® offers a verified 8:1 weight advantage over equivalent steel wire, with elongation below 1% and up to 4x greater abrasion resilience. We supply cut lengths, reel stock and custom-finished assemblies to marine, offshore, industrial and height safety sectors. Technical datasheets, breaking strain tables and product specifications are available on each product page.

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Dyneema® DC75 / 75XPS
SK75 Dyneema® single braid, 3–28mm to 33,500 kg spliced. For halyard cores, control lines, dinghy rigging and wire replacement. Easily inspected and field-spliced.
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Low Stretch Extension
Minimal Creep Extension
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Coating Enhanced Treatments
Pre-Stretched Treatments
Light Weight Weight
Dyneema® DC78 / 78XPS
SK78 Dyneema® single braid, 3–26mm. Lower creep than SK75 for high-cycle halyard cores, control lines and wire replacement. XPS pre-stretched variant available.
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Low Stretch Extension
Minimal Creep Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Light Weight Weight
Positive Buoyancy Weight
Dyneema® DC99 / 99XPS
SK99 Dyneema® single braid, 10–26mm to 38,100 kg spliced. For safety-critical diameter constraints, halyard cores, offshore guys and high-load wire replacement.
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Low Stretch Extension
Minimal Creep Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Pre-Stretched Treatments
Light Weight Weight
Positive Buoyancy Weight
Steelsafe
12-strand Dyneema® in SK75, SK78, SK99 or DM20. Torsionally stable, 9–120mm, breaking loads to 597 tonnes. For heavy lifting, offshore mooring and industrial wire replacement.
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Low Stretch Extension
Minimal Creep Extension
Torque Balanced Handling
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Coating Enhanced Treatments
Light Weight Weight
Cruising Dyneema®
Dyneema® blend core with polyester cover. Low-stretch cruising halyards and sheets for leisure and performance sailing. Stocked in multiple colours and diameters.
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Low Stretch Extension
Minimal Creep Extension
Anti-Kink Handling
Easy to Handle Handling
Easily Spliced Splicing
R5 Approved Sustainability
Heat Treated Treatments
Pre-Stretched Treatments
Light Weight Weight
Racing Dyneema® Pro
SK78 Dyneema® 12-strand core with 24-plait polyester jacket. Pre-stretched halyards and sheets, 8–24mm, for high-cycle keelboat racing and performance cruising.
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Low Stretch Extension
Minimal Creep Extension
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Heat Treated Treatments
Pre-Stretched Treatments
Hard Wearing Wear
Light Weight Weight
Dynastay
DM20 Dyneema® 12-strand rope, 3–13mm. Minimal permanent creep for forestays, backstays and synthetic standing rigging. Pre-stretched and field-spliceable.
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Minimal Creep Extension
Chemical Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Pre-Stretched Treatments
Light Weight Weight
Winching Dyneema
SK78 Dyneema® core with 24-plait polyester jacket. Sheathed synthetic winch rope, 8–24mm, for commercial and industrial winching. Jacket maintains rope roundness under drum pressure.
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Low Stretch Extension
Minimal Creep Extension
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Pre-Stretched Treatments
Hard Wearing Wear
Light Weight Weight
Racing Dyneema®
SK75 Dyneema® 12-strand core with 24-plait polyester jacket. Pre-stretched racing halyards and sheets, 8–16mm, for club racing and performance sailing.
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Low Stretch Extension
Minimal Creep Extension
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Pre-Stretched Treatments
Hard Wearing Wear
Light Weight Weight
Continuous Control Line
Purpose-built for endless loop dinghy control systems. Dyneema® SK75/polyester cover, polypropylene core, 4mm. Smooth running through blocks and cleats.
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Low Stretch Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
Hard Wearing Wear
Light Weight Weight
D-Racer 16
SK78 Dyneema® core with flexible 16-plait polyester cover, 3–6mm. Easily spliced and taperable dinghy halyards and sheets in four twist mix colour combinations.
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Low Stretch Extension
Minimal Creep Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Hard Wearing Wear
Light Weight Weight
Dinghy Dyneema®
SK78 Dyneema® 12-strand core with 32-plait polyester cover, 1–6mm. Hard-wearing dinghy halyards, sheets and control lines with colour-matched core for easy splicing.
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Low Stretch Extension
Minimal Creep Extension
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Hard Wearing Wear
Light Weight Weight
Superyacht Dockline Dyneema®
100% Dyneema® SK75 core with polyester cover. Bespoke superyacht mooring lines, 24–40mm, factory spliced with chafe protection in polyester, Dyneema® or leather.
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Low Stretch Extension
Easy to Handle Handling
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
R5 Approved Sustainability
Hard Wearing Wear
Dynamic Line DC12
SK75 Dyneema® 12-strand single braid with impregnated coating, 2–10mm to 8,500 kg. For soft shackles, dinghy rigging and dynamic wire replacement. SK78/SK99/DM20 on request.
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Low Stretch Extension
Minimal Creep Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Hard Wearing Wear
Light Weight Weight
Steelsafe Ultra
SK78 Dyneema® long lay core with 24-plait polyester cover. 22–44mm, 26.9–134.3 tonnes spliced. For offshore lifting, commercial winching and wire rope replacement.
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Low Stretch Extension
Minimal Creep Extension
Abrasion Resistant Resistances
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Hard Wearing Wear
D-Tract
HMPE 12-strand winch rope with optimised pitch and protective coating, 9–16mm. Dyneema-equivalent break loads for 4x4 winching and vehicle recovery. Made to order.
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Low Stretch Extension
Minimal Creep Extension
Low Water Absorption Resistances
UV Resistant Resistances
Easily Spliced Splicing
High Break Load Strength
Hard Wearing Wear
Light Weight Weight

Why Dyneema?

8:1 Weight Advantage Over Steel
At just 1/7th the weight of equivalent steel wire, Dyneema® allows for smaller, safer and more ergonomic rigging systems. Neutral buoyancy (SG 0.97) ensures full crane capacity is maintained at any depth without the penalty of self-weight, and eliminates the handling fatigue associated with steel wire during deployment and recovery.
Ultra-Low Elongation
With elastic stretch typically below 1%, Dyneema® eliminates "rope bounce" and provides millimetre-accurate control for precision lifting. This low-energy state also drastically reduces "snap-back" hazards compared to high-stretch polyester or steel.
4x Longer Service Life
Engineered to manage the FACTs (Fatigue, Abrasion, Creep, and Temperature), our Dyneema® range offers up to 4x the abrasion resilience of generic HMPE. Specific grades like SK78 and DM20 are further optimised to virtually eliminate permanent creep.
90% Lower Carbon Footprint
English Braids utilizes mass-balanced circular feedstocks that reduce CO_2 emissions by up to 29 tonnes per tonne of fibre compared to fossil-based HMPE. You achieve the same certified Minimum Breaking Load (MBL) while meeting rigorous Scope 3 ESG targets.
Superior Axial Thermal Conductivity
Dyneema® is a thermal-engineered thermoplastic. While it has a melting point of 145°C, its unique molecular alignment allows for high axial thermal conductivity (20W/m.K), dissipating heat along the fibre length 100x faster than standard polymers. This makes it exceptionally resilient in high-friction winch environments where internal core fusion is a risk for generic HMPE.
90% TCLL Fatigue Resilience
Our Dyneema® range is benchmarked against TCLL (Thousand Cycle Load Level) standards. While generic HMPE often fails under high-frequency cyclic loading, our SK78 fibres maintain over 90% of their original breaking strength after 1,000 load cycles. This reduces Total Cost of Ownership (TCO) by extending the safe operational window between replacements.

Compare Dyneema® Grades

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Dyneema® Grade Comparison: SK75, SK78, SK99 and DM20.

Real-world reliability is dictated by the FACTs: Fatigue, Abrasion, Creep, and Temperature. This matrix provides the markers required to ensure a lower Total Cost of Ownership (TCO).

Dyneema® SK75 (The Proven Standard)

The established specification for general marine, lifting and industrial rigging. Delivers an 8:1 weight advantage over steel with consistent, certified breaking loads, suited to high-volume applications where creep resistance is not the primary requirement.

Dyneema® SK78 (The Global Benchmark)

The default choice for high-cycle winching, mooring and running rigging. Offers 90% TCLL fatigue resilience over 1,000 high-load cycles, where dimensional stability under sustained load is operationally critical.

Dyneema® SK99 (Elite Performance)

Delivers a 20% strength advantage over SK78 at equivalent diameter. The specification of choice for grand-prix racing, deep-water lifting and offshore applications where diameter and weight margins are non-negotiable.

Dyneema® DM20 (Zero-Creep Static)

Engineered for permanent static installations: standing rigging, structural tethers and long-term load-bearing applications. DM20 exhibits virtually zero permanent creep where geometry and safety margins cannot drift.

Steel-to-Synthetic Efficiency Matrix

Transitioning from steel wire to Dyneema® delivers a dramatic improvement in strength-to-weight efficiency. At an equivalent breaking strain, our solutions offer a 7:1 weight advantage, significantly reducing crew fatigue and the Total Cost of Ownership (TCO) of deck hardware.

Efficiency Study: 500kN Strength Target

To achieve a 50-tonne (500kN) breaking capacity, the weight differential between synthetic and steel is transformative:

Material	Diameter	Weight/100m
Dyneema® SK78	24mm	32kg
Steel Wire (1770 N/mm²)	28mm	324kg

Result: 90% Weight Saving per metre

Kinetic Safety & Energy Management

Unlike steel wire, which acts as a massive spring, Dyneema® has ultra-low elastic elongation. Upon failure, the stored potential energy is significantly lower, causing the line to drop inertly rather than “snapping back” with lethal velocity.