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The Green Blue Business Directory

Electric Propulsion Systems


A range of marine drive systems catering for everything from a kayak to a 36 foot yacht.


RS Electric Boats


The ground-breaking PULSE58 is the first ever production RIB with a fully integral electric drive. Blending proven automotive electronic technology and an extremely efficient electric drive optimised hull form, with the highest level of sustainable construction. Comprising of bio-based infused epoxy resin, recycled PET core material and naturally sourced basalt and flax fibres. PULSE58 defines a new genre of motorboats, full electric drive requires a change of mindset and habits to match its capability.

These are key to protecting the future of our planet and continued enjoyment of boating in a sustainable way.

Marine Cleaning Products

Ecoworks Marine

Sustainability with Performance

Ecoworks Marine produce the most environmentally safe products, specifically for the Marine and Inland boating industry, that really work. Developed using the latest biotechnology in bacteria, enzymes and plant extracts, they clean without harm to the surface they’re used on and the full range surpasses current legislation standards.


All our products are bio-renewable, the quickest biodegradable and sustainably formulated to minimize the stress, acidity and impact on the marine environment. MARPOL approved and declared non harmful to marine flora & fauna. We offer a complete range from exterior, and interior through to engineering. All designed and produced in the UK.


Ecoworks Marine are currently offering a 10% discount on purchases of £40 or more as a Green Blue product partner. At checkout please use the code: GREENBLUE

Filtration Systems

Halyard (M&I) Ltd


The main distributors for Wave International supplying technically advanced filtration systems.

Providing effective control and prevention of oily contaminated bilge water. The Wavestream bilge filters are Lloyd’s Register of shipping Type Approved and Boat Safety Scheme compliant. Wavestream provides an efficient way of managing bilge water removal without the need for holding tanks whilst still protecting the environment.

The Wavebrite waste water system provides an effective solution for real time processing of grey water eliminating the need for holding tanks. It will remove sediment, phosphates, odur and colour whilst pumping through strainers & a filter module.

Mactra Marine Equipment


Mactra Marine are the UK Distributor of a collection of environmentally friendly products ideal for those living onboard. Starting with low power draw Schenker watermakers giving 30 litres of water an hour for just 9amps @ 12V to Sunset Solar panels & Superwind Turbines which power the Schenker watermaker.


New to the range is the Enteron, the smallest certified biological sewage water treatment plant which uses enzymes to digest waste over a 24-hour period returning a clean product to the water course and the Aquonic, Certified reverse osmosis plant for drinking water from inland waterways, rivers & ponds.

Blue Ocean Dockline

Marlow Ropes


Made from 100% recycled plastic bottles is exclusive to Marlow’s Mooring Series. A first in the industry, this premium dockline is made from rPET (recycled polyester yarn).

This eco-conscious Dockline is made from recycled yarn, whilst also being recyclable at the end of its life.  Available unspliced on reels and pre-spliced in 12-16mm diameters in lengths from 6m to 12m.

The unique construction offers the same popular attributes as regular Dockline, including good abrasion resistance and shock absorption with soft and supple flexibility and zero strength loss or shrinkage. Available in black or white silver, both with a distinguishable Blue Ocean fleck.

Bio-based Dyneema®

Marlow Ropes


Bio-based Dyneema® has identical technical characteristics and performance as conventional Dyneema but uses waste from the pulp and timber industry as its primary raw-material. 

 The new product from DSM Dyneema® is ISCC certified, which guarantees it is sustainable and renewable, due to the “mass-balancing” process. This means that the Ethylene feedstock used to make Dyneema® is transitioned from conventional petrochemical sources (fossil fuels) to sustainable and renewable sources with no change to the manufacturing process or the quality and performance of the yarn!  

Therefore, any a rope in Marlow’s standard SK78, SK99 and DM20 range, directly contributes to reduced CO2 emissions and has a lower environmental impact.

Bio-based Epoxy Resins




A range of high-performance bio-based epoxy formulations, manufactured under license by Wessex Resins & Adhesives, utilising SUPER SAP® technology. These products can help reduce the carbon footprint of companies manufacturing finished composite parts.


Not all carbon is created equal. We replace petroleum-based carbon with renewable plant-based carbon. The raw materials in our epoxy resins and hardeners are waste products of other industrially important processes. We also adopt an environmentally focussed approach to the production of ENTROPY RESINS, limiting our waste as much as possible and carefully selecting our packaging, offering life cycle analysis from cradle to gate.

Micfil Ultrafine Filters 


Micfil Ultrafine Filters use 0.5 micron fibre mesh inserts for diesel, lubrication and hydraulic systems and to summarise.

  • Significant reductions in engine oil, hydraulic oil & gear oil consumption with reduced frequency of oil changes.
  • 3-5% of savings in diesel due to better filtered / quality fuel.
  • Saving of spare parts for bearing sleeves etc.
  • Saving on injectors and injector pumps.
  • Overall, less down time for the equipment.
  • Significant extension in the life of the engine.
  • 98% of all bacteria removed from bio-contaminated diesel.
  • In-line or off-line as required.


Micfil water separators eliminate 100% free water in diesel.

Electric Propulsion and Hydrogen Cell Fuel Technology

Cheetah Marine is in a partnership with EV marine to develop a 12m x 4.3m fully electric commercial and leisure catamaran. The battery technology enables quick swap out giving the system the ability to be quickly repowered from battery’s which have been charging from Solar PV or Wind Generated electricity or charged from suitable shore power.

This is currently developing technology with the aim to be commercially available in 2021.

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