Cable-Stayed Bridge Steel Strand Wires Special Polyurea Coating

Product Overview

High-Performance Polyurea Coating for Cable-Stayed Bridge Steel Strand Protection

PS900B is a 100% solids aromatic spray polyurea coating engineered specifically for the long-term corrosion protection of stay cables and steel strand wires used in cable-stayed bridges. Designed for demanding infrastructure projects, it forms a seamless, highly elastic protective membrane that effectively shields steel cables from moisture, chlorides, chemicals and harsh environmental exposure.

The coating has been successfully applied in numerous cable-stayed bridge projects across Europe, North America and Asia, providing reliable protection under heavy traffic loads and severe weather conditions. With rapid curing technology, excellent adhesion and superior flexibility, PS900B helps extend bridge service life while reducing inspection frequency and maintenance costs.

Unlike conventional coating systems, PS900B combines waterproofing, corrosion resistance and mechanical durability in a single protective layer, making it an ideal solution for modern bridge cable protection systems.

Why Choose PS900B?

Engineered for Cable-Stayed Bridge Protection

Stay cables are continuously exposed to rain, humidity, UV radiation, airborne salts and industrial pollutants. PS900B creates a dense, seamless barrier that effectively isolates steel strand wires from corrosive environments, helping preserve structural integrity over decades of service.

Excellent Corrosion Resistance

The coating provides long-lasting protection against:

• Water penetration
• Chloride attack
• Salt spray
• Acid rain
• Industrial chemicals
• Atmospheric corrosion

Its outstanding chemical stability minimizes corrosion risks in coastal, marine and industrial bridge environments.

Outstanding Mechanical Durability

PS900B combines high tensile strength with excellent elasticity, allowing the coating to absorb vibration, thermal expansion and structural movement without cracking or delamination.

Benefits include:

• Excellent abrasion resistance
• High impact resistance
• Crack-bridging flexibility
• Strong adhesion to steel substrates

Rapid Construction

The fast-curing formulation gels within seconds and becomes tack-free in a short time, significantly reducing construction time and minimizing traffic interruptions during bridge maintenance or new construction.

Long-Term Cost Savings

Its exceptional weather resistance and durability help reduce maintenance frequency, lower life-cycle costs and extend the service life of valuable bridge infrastructure.

Key Features

• 100% solids, solvent-free polyurea coating
• VOC-free and environmentally friendly
• Designed for cable-stayed bridge steel strand wires
• Seamless waterproof protective membrane
• Excellent corrosion and chemical resistance
• Outstanding impact and abrasion resistance
• Superior adhesion to steel substrates
• Excellent UV and weather aging resistance
• Flexible coating accommodates structural movement
• Fast curing for efficient construction
• Long service life with reduced maintenance requirements

Typical Applications

PS900B is designed for corrosion and waterproof protection of bridge cable systems, including:

• Cable-stayed bridge stay cables
• Steel strand wires
• Suspension bridge cable systems
• Bridge anchor cable protection
• Steel cable corrosion rehabilitation
• New bridge construction
• Bridge maintenance and refurbishment
• Heavy-duty infrastructure projects

Technical Advantages

Seamless Protective Barrier

Unlike traditional wrapping systems or segmented coatings, PS900B forms a continuous membrane without joints, reducing the possibility of moisture penetration and localized corrosion.

Strong Adhesion to Steel

With steel adhesion strength reaching 11.5 MPa, the coating remains firmly bonded under vibration, wind loads and repeated dynamic movement.

Superior Waterproof Protection

The dense elastomeric coating prevents water ingress while maintaining long-term flexibility, providing reliable protection against corrosion caused by moisture and chloride penetration.

Designed for Harsh Outdoor Environments

PS900B maintains stable performance under:

• UV exposure
• Temperature cycling
• Rainfall
• Snow and ice
• Coastal environments
• Industrial pollution

Technical Specifications

Application Method

PS900B is designed for professional high-pressure spray application.

Recommended Equipment

• GRACO H-XP3 Polyurea Spray Machine
• Fusion Air Purge Spray Gun
• Mechanical Purge Spray Gun

Recommended Spray Parameters

• Material Temperature: 65–70°C
• Hose Temperature: 55–65°C
• Static Pressure: 2300–2500 psi
• Dynamic Pressure: 2000–2200 psi

Benefits for Bridge Owners

By protecting stay cables against corrosion, moisture penetration and environmental aging, PS900B helps infrastructure owners:

• Extend bridge service life
• Reduce inspection frequency
• Lower maintenance expenses
• Improve structural reliability
• Enhance long-term asset value

Frequently Asked Questions

1. What is PS900B used for?

PS900B is specifically developed for corrosion protection of stay cables and steel strand wires used in cable-stayed bridges and other steel cable structures.

2. Why choose polyurea for bridge cable protection?

Polyurea provides seamless waterproofing, excellent flexibility, rapid curing and superior corrosion resistance compared with many conventional protective coating systems.

3. Is PS900B suitable for marine bridge environments?

Yes. It offers excellent resistance to salt spray, chloride penetration, humidity and harsh coastal environments, making it suitable for marine infrastructure projects.

4. Can PS900B withstand structural movement?

Yes. Its high elongation and flexibility enable the coating to accommodate cable vibration, thermal expansion and dynamic loading without cracking.

5. What substrates can PS900B adhere to?

PS900B exhibits excellent adhesion to steel and other properly prepared metal substrates, ensuring durable long-term protection.

Why HUISINS PS900B?

HUISINS PS900B combines advanced spray polyurea technology with proven infrastructure protection performance to meet the demanding requirements of cable-stayed bridge projects worldwide. Its seamless waterproof membrane, exceptional corrosion resistance and long-term durability make it an ideal protective solution for bridge steel strand wire systems exposed to harsh outdoor environments.