What is a
rubber fender?

rubber buffer

Fenders are rubber buffers widely used in shipping, vehicle construction and industry to prevent damage. But how exactly?

The term ‘fender’ originates from the maritime sector and is derived from the term ‘fend off’, meaning to ward off. A fender, also known as a rubber buffer, is a rubber block with an internal structure that is designed to absorb the impact of a docking ship, preventing damage to the vessel, risers and quay. Rubber buffers are also frequently used in vehicle construction and industrial applications.

absorbing energy

APPLICATIONS OF RUBBER FENDERS

Rubber is highly suitable for fenders because it can absorb the energy generated during impact. This absorption improves when the rubber compound is filled with reinforcing fillers, which help minimise rebound when a ship docks, for example.

On a smaller scale, this principle can also be observed with a rubber mallet. If a pavement worker used a steel hammer, the pavers would crack. A rubber mallet absorbs the strike without significant rebound. The same concept applies to rubber tiles in playgrounds. If a child falls from play equipment, the rubber absorbs the shock, reducing the likelihood of broken bones – a practical solution.

During an impact, rubber compresses, dissipates the energy and decreases the impact velocity. EPDM or SBR is often used for making fenders.