WM-PB Series Polyethylene Buoys is one of Wealth Marine’s latest design and manufacture. This buoy is made from rotationally moulded, UV-stabilised polyethylene material, with its inner body filled with polystyrene foam and being reinforced with a steel structure.
The required colour pigment is injected into the polyethylene material before the moulding process. This prolongs the surface colour of the buoy without the need for painting. In this modern ‘aids-to-navigation’ world, Polyethylene Buoys have the great potential of replacing the conventional steel navigational buoys.
This is because as compared to steel buoys, Polyethylene Buoys are light-weight (easier for installation) and possess anti-fouling properties. Besides, due to its elastic nature, it is absorbent to impact forces and can withstand relatively larger collisions. As such, these buoys are maintenance-free and have longer lifespan. Therefore, Polyethylene Buoy is indeed an ideal ‘floating aids to navigation’.
Specifications (for Diameter 1.8m: WM-PB1.8)
Construction: Rotationally Moulded; medium density, UV-stabilised polyethylene (thickness of 9.5mm)
Foam-fill material: 16 kg/m3 expanded polystyrene foam
Air weight: 460kg
Diameter: 1800 mm
Focal Plane Height: 2500mm (Extended-3500mm)
Draft: 750mm
Freeboard: 310mm
Buoyancy: up to 2000kg (for diameter 1.8m)
Radar Reflector: 10m2 (X-band)
Radar Range: 3-4 nautical miles
Visual Detection Area: Can-shaped daymarks – 1.6m2
Cone-shaped daymarks – 1.5m2
Surface Colour: As required
Surface texture: Anti-slip surface for increased safety
(during maintenance/installation works)
Maximum Mooring Load: 638 kg
Maximum current speed: 3.09 m/s (6 knots)
Mounting hardware: stainless steel bolts & nuts
Recommended Mooring Applications for Different sizes:
|
Model |
Diameter (m) |
Focal Height (m) |
Water Depth (m) |
Weight (kg) |
Recommended
Lantern |
Mooring Chains (mm) |
Buoyancy (Kg) |
|
WM-PB0.8 |
0.8 |
1.48 |
2-60 |
60 |
WM-L70A |
18
(Nylon rope) |
170 |
|
WM-PB1.0 |
1.0 |
1.65 |
2-60 |
85 |
WM-L70A |
20
(Nylon rope) |
390 |
|
WM-PB1.2 |
1.2 |
2.0 |
2-60 |
130 |
WM-L150A |
22
(Nylon rope) |
780 |
|
WM-PB1.8 |
1.8 |
3.5 |
5-40 |
460 |
WM-L150A |
28
(stud link) |
2000 |
|
WM-PB2.5 |
2.5 |
4.4 |
8-60 |
2800 |
WM-L150A
/WM-L350A |
34
(stud link) |
5000 |
Polyethylene Repair Kit:

A set of Polyethylene Repair Kit is available with heat gun, welding rods and other accessories for convenience of patching and repair on site.