Foam is another material used in the construction of corner dock fenders. Foam fenders are typically filled with closed-cell foam, which provides good buoyancy and shock absorption. They are lightweight and easy to handle, making them a convenient option for many marine applications. Foam corner dock fenders are also resistant to water absorption, which helps prevent issues related to mold and mildew.

Despite their advantages, foam fenders have some limitations. They may not be as durable as rubber or PVC fenders, especially in harsh marine environments. Over time, foam can degrade due to exposure to UV rays and other environmental factors. Additionally, foam corner dock fenders may require more frequent replacement compared to their rubber or PVC counterparts.

In summary, the choice of material for corner dock fenders depends on various factors, including the specific application, environmental conditions, and budget. Rubber fenders offer good durability and energy absorption but can leave marks on boats. PVC fenders provide a lightweight and aesthetically pleasing option but may not absorb impacts as effectively. Foam fenders are easy to handle and resistant to water absorption but may not be as long-lasting as rubber or PVC.