HDPE (High Density Polyethylene) use in the marine industry is not new, it has been a project construction solution from harbour and port security barriers, heavy duty dockside fendering systems, to residential docks.

“HDPE is quickly becoming the material of choice for many types of marine applications”

  • it is lighter than water providing intact buoyancy,

  • highly resistant to corrosion,

  • chemicals and marine growth,

  • no moisture absorption,

  • an excellent insulator with minimal heat transfer (copper transfers heat 2700 times more than HDPE,

  • elasticity durability due to a high tensile strength that can withstand fatigue and surges,

  • long-lasting and impact resistant,

  • HDPE is climate transferable from the artic to the tropics – its weather-resistance can withstand freezing (frozen water will not crack or break HDPE)

  • Carbon black added to HDPE provides UV resistance and can withstand tropical climates.

  • HDPE components are constructed using fusion welding which provide a seamless join with 100% strength that yields a long-lasting lightweight robustness.  The outcome is a lighter weight easier workboat to launch at the water’s edge.

The carbon footprint for manufacturing HDPE is lower than its GRP or metal alternative – 5 times less than that of aluminium.

“Very sustainable – it can be 100% recycled”

It is the most environmentally stable of all plastics because it does not contain BPA, phthalates, heavy metals or allergens or release damaging fumes into the environment. It can be 100% recycled making it very sustainable.

Products i.e. milk and detergent bottles made from Type 2 HDPE recycled plastic are considered Eco-friendly because they are made from post-consumer products and recyclable.

“HDPE has allowed the designing out of the inflatable tubes of traditional RIBs”

When the advantages of HDPE are brought it is clear there are significant advantages that outweigh GRP, aluminium and steel as a construction material along with the opportunity to design out the traditional ‘inflatable tubes’ of RIBs and replace them with rubber or plastic fendering increasing deck space by 50%.

“HDPE requires no anti-fouling contaminating the sea bed and wider marine environment”

The HDPE Seahorse workboat is the environmental option because being non-toxic, corrosion and chemical resistant means there is no anti-fouling and hull painting that potentially contaminate the seabed and the wider marine environment.  As a lighter construction material this further yields fuel efficiency and therefore lower fuel emissions.

“The immortal beast of the workboat sector”

HDPE constructs vessels with remarkable adaptability and cost-efficiency the result being an almost indestructible and unsinkable functional workboat that offers tremendous strength, intact buoyancy and a reliable working platform.

“8M bare boat in 6-8 weeks”

Not forgetting one last advantage – shorter construction times; an 8M hull can be manufactured within 6-8 weeks.

Download the HDPE flyer here.

Download the HDPE specs here.