Project Background

A client faced severe leakage issues on their 2,500㎡ aging roof, requiring a high-efficiency, long-lasting waterproofing 

solution. After thorough evaluation, they chose our spray polyurea PS500A—a self-developed material renowned for its 

superior waterproofing, rapid curing, and exceptional durability—successfully resolving the leakage problem.

Challenges

Large surface area (2,500㎡): Traditional waterproofing methods were time-consuming and weather-dependent.

Substrate defects: Existing cracks and surface spalling demanded integrated repair and waterproofing.

High durability requirements: The client needed extreme temperature resistance (-40°C to 150°C) and a 20+ year lifespan.

Solution: Spray Polyurea PS500A

✔ Seamless Elasticity: Forms a continuous membrane, bridging cracks and accommodating structural movement.

✔ Rapid Curing: Walkable within 2 hours, reducing downtime by 50%.

✔ Extreme Weather Resistance: UV-stable, chemical-resistant, and adaptable to harsh climates.

✔ Eco-Friendly: Zero VOC, 100% solid content, compliant with green building standards.

Construction Process

Surface Prep: Debris removal, crack repair, and leveling.

Primer Application: Enhances adhesion between substrate and polyurea.

PS500A Spraying: Applied via high-pressure equipment for a uniform 1.5mm-thick layer.

Quality Test: 48-hour water immersion with zero leakage.

Results

✅ 50% Faster Completion: Entire project finished in 3 days, minimizing disruption.

✅ 100% Waterproof: No leaks even during heavy rains.

✅ Cost-Efficient: Low maintenance needs cut long-term expenses.