Marine rubber fenders were first developed in Japan in 1958. Their production must comply with ISO 17357. This standard stipulates international norms regarding the materials and testing methods for these fenders. In general, to enhance protection, marine rubber fenders are often surrounded by tires and chains. Alternatively, they can be reinforced with rubber ribs (Rib Fender) without the use of tires and chain mesh (sling fender).
Marine rubber fenders that meet the ISO 17357 standard come in a wide range of sizes. The maximum diameter can reach up to 4500 mm, and the maximum length can be 12000 mm.
A marine rubber fender is composed of three main parts: the inner rubber layer, the outer rubber layer, and the synthetic - tire - cord layer.
The outer layer is made from natural rubber, which is a robust compound with excellent tear strength and high tensile strength. This outer layer plays a crucial role in safeguarding the fender against the harsh usage conditions and complex natural environments it may encounter.
The inner rubber layer serves the purpose of sealing the internal air, effectively eliminating the risk of air leakage.
The reinforced synthetic - tire - cord layer consists of composite tire cords with cross - shadow lines. This layer can be customized according to the specific requirements of customers and different application scenarios.
