Pontoons & Buoys
EPS flotation cores for docks, platforms and marine buoys — permanent buoyancy that cannot sink.
One System, Built to Work Together.
A closed-cell EPS core floats even damaged — puncture it and it keeps floating, unlike any air-filled chamber. That makes EPS the flotation heart of docks, work platforms, cages and buoys worldwide.
Insutech blocks and molded floats supply the buoyancy; encapsulation and framing turn them into marina fingers, aquaculture cages and navigation marks that live their lives in the water.
- Marina docks and fingers
- Floating work platforms
- Aquaculture cages and walkways
- Navigation and mooring buoys
- Floating solar and intake structures
See the System in Action.
Layer by Layer.
- 01
EPS Flotation Core
The buoyancy itself — closed-cell EPS sized to the load and freeboard.
- 02
Encapsulation
A polymer or concrete shell armours the core against water and wear.
- 03
Structural Frame
Galvanised or aluminium framing ties floats into modules.
- 04
Decking
Timber or composite decking makes the working surface.
- 05
Mooring & Hardware
Anchors, piles and cleats hold the system on station.
01Unsinkable by Nature
Closed-cell EPS keeps floating even punctured — buoyancy without a hollow to flood.
02Made for the Water
Minimal absorption keeps freeboard constant season after season.
03Light to Build and Tow
Modules assemble onshore and move to station without heavy lift.
04Sized to the Job
Density and volume tuned to deck loads, from kayak docks to work barges.
Common questions about this system.
Where is the Pontoons & Buoys system used?
It is typically used for marina docks and fingers, floating work platforms, aquaculture cages and walkways, navigation and mooring buoys and floating solar and intake structures.
Which Insutech products are used for pontoons & buoys?
The recommended system is built with InsuBlock 20kg/m³, InsuBlock 25kg/m³, InsuBlock 30kg/m³ and EPS Floatation Devices — full details for each are on the recommended products cards on this page.
How is the system installed?
The system is installed in 5 stages: EPS Flotation Core, encapsulation, structural Frame, decking and mooring & Hardware. The system build-up section on this page illustrates the full sequence. An application video is also available above.
What are the main advantages of the pontoons & buoys system?
The key advantages are unsinkable by Nature, made for the Water and light to Build and Tow — each is explained in the Key Benefits section on this page.