Dockfender canbe defined as a bumper that is used to absorb the kineticenergy of a boat or vessel berthing against a jetty, quay wall or other vessel.Dock fenders are used on all types of vessels from cargo ships to cruise ships,ferries and personal yachts, prevent damage to vessels and berthing structures.Thepolymersthatare used mainlyfor dock fenders include: EPDM, SBR, Neoprene, Natural rubber,TPE, and Butyl rubber.Types:Thereare several types of fenders depending on shape, function and application.

Someofthe key ones are listed below:•CylindricalFenders:They are the most commonly used fenders that can be used for different kinds ofvessels. They are simple and easy to install.•ArchFenders:Theysimple andrugged marine fender systems, providing reliable and trouble free service for awide variety of berths even under the most severe conditions•CellFenders: Theyare bestemployed for large size vessels, where higher energy & lower reaction is animportant criteria.These fenders show high performance and strength.

•ConeFenders:These fenders are the latest version of cell fenders which provide optimalperformance and efficiency. They can be used for all types of applications suchas high tidal variation sites. •ExtrudedFenders: Theyare usually attached with bolts to the structure. Theyare used in jetties and wharves for small craft,tugs andworkboats,pontoon protection, inland waterways and general purpose fendering.•PneumaticFenders:They aremainly used for permanent and semi-permanent port applications and for offshoreship-to-ship transfers.

These fenders have lowreaction force at low deflection. They are used for liquidcargovessels and defense vessels•FoamFenders:These fenders have superior wear and tear resistance and have the ability toabsorb impact in aggressive environments. They usually contain a closed cellpolyethylene foam core in the center and has a outer layer of polyurethane.

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