this kind of wharf fender is made by UHMW-PE . I t have the following advantage:

Advantage: ultra- high weight and high plasticity. Compared to other polymer material, it has the advantages of low friction coefficient, low wear, and high chemical corruption resistance, high resistance to impact, pressure, freezing, heat insulation, self-lubrication, resistance to dirt generation, resistance to breaking and stress, sanitation, etc. It is used to produce pipe with self-lubrication and high resistance to dirt generation. For instance, min. Friction coefficient is 0.07~0.11, that is equal to the friction between ice and ice . It is Gives Important Properties.
1. Very High Abrasion Resistance
2. Very High Impact Strength
3. Very Low Coefficient Friction And Good Self-lubricants Properties
4. Chemical Resistance
5. Resistance Under Low Temp.
6. Dielectric Properties