Marine

Keeping boats and floating structures buoyant, rust-free and resistant to marine damage.

Floats Your Boat

The open water can present deep challenges to the longevity and performance of boats and floating structures. Dow has leveraged its expertise in rigid and spray-foam insulation to deliver you innovative solutions uniquely suited for a variety of marine applications.

The Dow Difference

The first sales of STYROFOAMTM were to the military and the product was used for flotation devices and bridges during World War II.


 Luxury yacht at sea.

Boat Solutions

Our FROTH-PAK™ Polyurethane Foam insulation adds lightweight buoyancy to your boat and adheres to a variety of surfaces including wood, metal, glass and most plastic. It’s a quick and effective solution for a variety of marine applications including:

  • Sound damping
  • Vibration control
  • Flotation and buoyancy



 Wooden dock at a marina.

Floating Structures

Enhance the buoyancy and longevity of your floating structures. Our STYROFOAM™ Brand Extruded Polystyrene Foam Billets are an excellent choice for docks, rafts and boathouses.

  • Lightweight and quick to install
  • Resistant to rust, corrosion and marine growth
  • Won’t waterlog or lose buoyancy, even when punctured