Polyethylene Cardinal Buoy Manufacturer

This 2.4m Cardinal Buoy is a high-performance marine navigation buoy designed for inland waterways, coastal areas, offshore ports, and harbor navigation systems.

As an experienced cardinal buoy manufacturer, we provide durable and IALA-compliant buoy solutions for marine navigation and offshore safety applications.

Compared with traditional steel buoys, our polyethylene cardinal buoys offer excellent corrosion resistance, lower maintenance costs, and longer service life in harsh marine environments.

Durable 316L Stainless Steel Internal Structure

The internal framework of the cardinal buoy is manufactured from high-strength 316L stainless steel, providing excellent resistance to seawater corrosion, salt spray, and offshore environmental conditions. This robust structure ensures long-term stability and reliable performance in demanding marine applications.

Technical Specifications:

UV-Resistant Rotomolded LLDPE Body

The buoy body is produced using UV-stabilized LLDPE through advanced rotational molding technology. The finished buoy colors fully comply with IALA standards for marine navigation marks.

The material offers excellent resistance to UV exposure, seawater corrosion, and harsh offshore environments, helping maintain color stability and structural performance over extended service periods.

High Buoyancy Closed-Cell Polyurethane Foam Filling

The interior of the buoy is filled with high-density two-component polyurethane foam with a closed-cell rate exceeding 90%.

Even if the buoy shell is damaged, the internal foam structure prevents water ingress from causing sinking, helping maintain buoyancy and improving marine navigation safety.

Advantages of Our Cardinal Buoys

-  IALA-compliant buoy design

-  Excellent UV resistance

-  Strong impact resistance

-  Corrosion-resistant materials

-  Long service life

-  Low maintenance cost

-  Suitable for offshore and coastal environments

-  Custom sizes and configurations available

Looking for a reliable cardinal buoy manufacturer for your marine navigation project?

Contact us now for technical support, customization options, and quotation services for steel and PE cardinal buoy systems. 

Learn more about cardinal buoys, including IALA marking systems, buoy classifications, and offshore navigation applications, in our detailed guide.