CHEMFLEX-PU
Single Component Polyurethane Waterproofing Coating
CHEMFLEX-PU is a single-component, UV-resistant, heat-reflective polyurethane waterproofing coating designed to provide a seamless, elastic, and durable protective membrane for concrete and steel structures. It offers excellent waterproofing performance, flexibility, and long-term weather resistance.
Key Features
- Exceptional Waterproofing
- Heat Reflective Coating
- High Flexibility
- UV Resistant
- Chemical Resistant
- Crack Bridging
- Single Component
- Easy Application
- Quick Cure Time
- Low VOC Formulation
Applications
Suitable for:
- Roof Waterproofing
- Wet Areas Waterproofing
- Basement Waterproofing
- Foundation Waterproofing
- Steel Structure Waterproofing
- Bridge Deck Waterproofing
- Water Tanks & Vessels
- Commercial Buildings
- Dead Walls Waterproofing
- Flooring Protection
- Sports Flooring
Advantages
- Forms a seamless waterproof barrier
- Prevents water penetration
- Excellent elasticity to accommodate substrate movement
- Outstanding UV resistance
- Resistant to common chemicals and pollutants
- Heat reflective surface
- Spray, brush, or roller application
- Rapid curing for faster project completion
- Environmentally friendly low VOC formulation
Packaging
Available in:
- 5 kg Bucket
- 16 kg Bucket
- 20 kg Bucket
- 200 kg Drum
Technical Specifications
| Property | Value |
|---|---|
| Appearance | Liquid |
| Standard Colors | White, Gray, Tan |
| Density | 1.2–1.4 g/cm³ |
| Solid Content | 80–85% |
| Tensile Strength | >3 MPa |
| Elongation at Break | >400% |
| Shore A Hardness | 60–70 |
| UV Resistance | Excellent |
| Chemical Resistance | Excellent |
| Service Temperature | -40°C to 90°C |
| Recoat Time | 4–6 Hours |
| Full Cure Time | 24–48 Hours |
Surface Preparation
- Surface should be clean, dry, and sound.
- Remove dust, grease, wax, curing compounds, laitance, and contaminants.
- Repair rough areas before application.
- Apply the first coat diluted with 20% water as a scratch coat.
- Use an adhesion-promoting primer where required.
Storage
Store under cover, away from direct sunlight and extreme temperatures. Shelf life is 1 year when stored under recommended conditions.