Coastal Dam Polyurea Protective Coating

Product Overview

High-Performance Polyurea Protection for Coastal Dams and Hydraulic Structures

PS700B is a 100% solids, two-component spray polyurea protective coating specially developed for coastal dams, dyke dams and hydraulic engineering structures.

With fast curing characteristics and excellent mechanical performance, PS700B forms a seamless, flexible and durable protective membrane that effectively blocks water, oxygen and corrosive media penetration.

The coating combines outstanding waterproofing, impact resistance, abrasion resistance and aging resistance. It maintains stable performance under long-term outdoor exposure, including alternating conditions of cold, heat, rain and snow.

Its high flexibility allows the coating to accommodate minor substrate cracks and deformation, making it an ideal solution for demanding water conservancy and coastal protection projects.

Protection Challenges in Coastal Dam Structures

Coastal dams and hydraulic facilities are exposed to:

• Continuous water contact
• Moisture penetration
• Salt corrosion
• Temperature changes
• Mechanical impact
• Long-term outdoor aging

Traditional waterproofing materials may experience cracking, peeling or performance loss after prolonged service.

PS700B provides a seamless protective barrier designed to improve structural durability and extend service life.

How PS700B Protects Dam Structures

After spray application, PS700B rapidly cures into a high-strength elastomeric membrane.

The coating provides:

• Complete waterproof protection
• Strong adhesion to concrete substrates
• Resistance against impact and abrasion
• Protection against corrosion factors
• Long-term outdoor durability

Its seamless structure eliminates coating joints and reduces potential leakage risks.

Key Performance Advantages

Excellent Waterproof Performance

PS700B creates a continuous waterproof membrane that effectively prevents water penetration and protects concrete structures from moisture damage.

High Flexibility and Crack Resistance

With high elongation and elasticity, PS700B can accommodate minor substrate movement and cracks, helping maintain long-term protection.

Superior Impact and Wear Resistance

The tough polyurea coating layer provides excellent resistance against:

• Water impact
• Mechanical abrasion
• External damage

making it suitable for high-demand hydraulic environments.

Fast Curing and Efficient Construction

PS700B can be sprayed on curved, inclined and vertical surfaces without sagging.

Its rapid curing performance helps shorten construction time and improves project efficiency.

Application Areas

PS700B is suitable for waterproof and anti-corrosion protection of:

• Coastal dams
• Dyke dams
• Hydraulic engineering structures
• Concrete water facilities
• Water conservancy infrastructure
• Outdoor concrete protection systems

Technical Specifications

Chemical Resistance Performance

PS700B provides excellent resistance against common environmental and chemical exposure.

Recommended Application System

For optimal coating performance:

Concrete Substrate

↓

Surface Preparation

↓

Concrete Primer (EP1304 / HP6303K)

↓

Surface Repair and Putty Treatment

↓

PS700B Spray Polyurea Coating

↓

Aliphatic Polyurea Topcoat (Optional)

This system provides durable waterproofing and protection for coastal dam structures.

Application Guide

Recommended Spray Equipment

PS700B requires professional high-pressure two-component polyurea spraying equipment.

Recommended:

• GRACO H-XP3 Polyurea Spray Equipment
• 1:1 Ratio Two-Component Spray System

Application Conditions

Construction Process

1. Surface Preparation

Remove dust, oil, loose particles and surface contaminants.

Ensure the concrete substrate is clean, dry and properly prepared.

2. Primer Application

Apply suitable concrete primer evenly without missing areas.

3. Surface Repair

Repair pores, cracks and uneven areas with suitable materials.

4. Polyurea Spraying

Apply PS700B using professional spray equipment with uniform thickness.

5. Final Inspection

Check coating appearance, thickness and adhesion before project completion.

Why Choose PS700B Coastal Dam Polyurea Coating?

Compared with traditional waterproofing systems, PS700B provides:

• 100% solids environmentally friendly formulation
• Seamless waterproof protection
• Excellent flexibility
• High impact resistance
• Strong abrasion resistance
• Fast curing performance
• Long-term outdoor durability
• Reduced maintenance requirements

PS700B provides a reliable protective solution for coastal dams and hydraulic structures exposed to demanding water environments.

Frequently Asked Questions

1. What is PS700B used for?

PS700B is designed for waterproofing and anti-corrosion protection of coastal dams, dyke dams and hydraulic structures.

2. Can PS700B be applied on vertical surfaces?

Yes. Its fast curing characteristics allow spraying on curved, inclined and vertical surfaces without sagging.

3. Why choose polyurea coating for dams?

Polyurea provides seamless waterproofing, high flexibility, impact resistance and long-term durability compared with many traditional coating systems.

4. Can PS700B withstand outdoor weather conditions?

Yes. PS700B provides excellent aging resistance and maintains performance under changing outdoor conditions.

5. What substrate can PS700B bond to?

PS700B is mainly designed for concrete structures with proper surface preparation and primer treatment.

Packaging and Storage

Packaging

• Component A: 220 kg / 200L drum
• Component B: 210 kg / 200L drum

Color

Standard color: Gray
Other colors available according to customer requirements.

Storage

Store in a cool and dry place at 5–35°C. Avoid direct sunlight.

Shelf Life

9 months under recommended storage conditions.