What Are Foam Filled Fenders?
Foam filled fenders are cylindrical or rectangular marine fenders consisting of three primary layers:
Polyurethane Outer Skin: The tough and abrasion-resistant outer layer is usually made from a polyurethane elastomer, which resists damage from harsh marine environments.
Closed-Cell Foam Core: The core is made out of lightweight, high-density, closed-cell foam that cannot absorb water. This core compresses under time limits, absorbing impact energy effectively.
Internal Steel Structure (Optional): Some heavy-duty fenders include an internal steel core or axis to aid towing and handling.
These fenders can be purchased in various sizes and configurations to accommodate different vessel types, which range from small boats to large tankers and naval ships.
Advantages of Foam Filled Fenders
Foam filled fenders offer several advantages over traditional fendering systems:
High Energy Absorption: The closed-cell foam compresses upon impact, dissipating energy efficiently and minimizing vessel damage.
Unsinkable: Even if punctured, the fender remains functional as a result of non-water-absorbent foam core.
Durability: Resistant to UV radiation, saltwater, oil, and chemicals, foam filled fenders are built to withstand tough environmental conditions.
Low Maintenance: Unlike pneumatic fenders, they don’t require inflation or constant pressure monitoring.
Customization: Available in different shapes, sizes, and colors to satisfy specific application needs.
Long Lifespan: With proper use, these fenders can last for years with minimal degradation.
Common Applications
Foam filled fenders are used across a variety of marine environments:
Ship-to-Ship (STS) Transfers: Ideal for energy absorption during lateral berthing between large vessels.
Ship-to-Dock (STD) Berthing: Installed on piers or docks to guard both ships and infrastructure.
Naval Operations: Frequently used by navies because of their reliability and performance under extreme conditions.
Offshore Platforms: Provide protection for supply vessels during offshore loading or unloading.
Types of Foam Filled Fenders
Cylindrical Fenders: Commonly used for larger vessels and ship-to-ship transfers.
Donut Fenders: Designed to float freely around a mooring post or pile, suitable for guiding vessels.
Square or Rectangular Fenders: Suitable for docks or quay walls requiring flat working surface contact.
Foam filled fenders can be a versatile and reliable solution for marine impact protection. Their rugged construction, high end, and low maintenance requirements make them a preferred option for commercial, industrial, and military maritime applications. As ports and vessel sizes expanding, the interest in high-performance fendering systems like foam filled fenders will still only increase, ensuring safer and much more efficient marine operations.