Durable, Lightweight Buoyancy and Structural Foam for Harsh Marine Environments
Closed-Cell Foam for Reliable Flotation and Void Filling
Our closed-cell polyurethane foam is widely used for flotation in marine applications. It resists water absorption, maintains buoyancy under pressure, and conforms to various shapes and cavities — making it ideal for filling hull voids, pontoons, and dock floats.
Southern Urethane’s marine foam solutions help improve vessel safety, reduce risk in submerged structures, and meet international marine flotation standards. Whether you’re retrofitting a boat or manufacturing a new marina, we provide dependable foam performance below the waterline.
Foam Cores for Hulls, Decks, Bulkheads and More
Southern Urethane’s rigid foam panels serve as structural cores in fibreglass reinforced components across marine construction. They offer a perfect balance of stiffness and low weight, enabling the construction of efficient vessels, platforms, and marine architecture.
Designed to work with polyester, vinyl ester, and epoxy resins, our foam cores bond well during lamination and machining. They’re used in applications ranging from boat decks to custom marine furniture, providing durability and form with ease of fabrication.
Core Material Highlights
- Excellent strength-to-weight ratio
- Compatible with a variety of marine resins
- Easy to machine, bond, and shape
- Supports lamination of hulls, decks, and superstructures
Seamless & Efficient
Marine-Grade Foam That Withstands the Elements
Built for Salt, Sun & Sea
Marine environments present constant exposure to saltwater, UV rays, and fluctuating temperatures — all of which can degrade inferior materials over time. That’s why our foam solutions are engineered to resist rot, chemical damage, and thermal breakdown.
Marine Durability Benefits
- UV and saltwater resistant
- Will not rot, mold, or break down
- Withstands thermal cycling and harsh climates
- Ideal for both exposed and submerged applications