4:1 Manual Brushing Polyurea Rigid (Commonly Used) SJHB-5208-G
4:1 Manual Brushing Polyurea Rigid (Commonly Used) SJHB-5208-G
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Product Overview: Professional-Grade Brushing Polyurea
Manual Brushing Polyurea is a revolutionary, user-friendly protective coating system designed for applications where spray equipment is impractical or unavailable. This high-performance, single-component formulation combines the exceptional durability of traditional polyurea with the simplicity of brush or roller application. Engineered for DIY enthusiasts, maintenance teams, and small-scale contractors, it delivers professional waterproofing, corrosion protection, and abrasion resistance without the complexity of specialized equipment.
Core Product Performance
This brushing polyurea forms a seamless, elastic membrane that provides superior barrier protection against water infiltration, chemical attack, and physical wear. Its advanced chemistry enables excellent adhesion to concrete, steel, wood, and masonry surfaces, creating a durable, flexible coating that accommodates substrate movement and thermal cycling without cracking or delamination. The result is long-lasting protection that maintains its integrity in demanding environmental conditions.
Key Features & Technical Advantages
- No Special Equipment Required: Apply with standard brushes, rollers, or trowels – no expensive spray equipment or professional training needed.
- Single-Component Convenience: Ready-to-use straight from the container, eliminating mixing errors and saving time.
- Excellent Surface Adhesion: Bonds securely to multiple substrates including concrete, metal, wood, and previously coated surfaces.
- Rapid Moisture Cure: Cures through reaction with atmospheric moisture, forming a durable, waterproof membrane within hours.
- High Elasticity & Flexibility: Up to 300% elongation capability accommodates structural movement and thermal expansion.
- Chemical & Abrasion Resistance: Withstands exposure to chemicals, fuels, salts, and mechanical wear in industrial environments.
- Wide Temperature Performance: Remains flexible at temperatures as low as -30°C and stable up to 100°C.
- Low VOC & User-Friendly: Minimal odor, reduced health risks, and safer application in confined spaces.
Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Viscous liquid, various colors available | Visual |
| Viscosity (25°C) | 5,000-15,000 mPa·s (brushable consistency) | Brookfield Viscometer |
| Touch Dry Time | 2-4 hours (depending on temperature/humidity) | ASTM D1640 |
| Full Cure Time | 24-48 hours | ASTM D1640 |
| Dry Film Thickness | 1.0-1.5 mm per coat (recommended) | ASTM D4138 |
| Tensile Strength | ≥ 12 MPa | ASTM D638 |
| Elongation at Break | ≥ 250% | ASTM D638 |
| Adhesion to Concrete | ≥ 2.0 MPa (cohesive failure) | ASTM D4541 |
| Shore Hardness | Shore A 70-85 | ASTM D2240 |
Primary Application Areas
Residential & Commercial Waterproofing:
- Roof & Terrace Waterproofing: Flat roofs, balconies, terraces, and parapet walls
- Basement & Foundation Protection: Below-grade walls, foundation cracks, and cellar waterproofing
- Bathroom & Wet Area Sealing: Shower areas, wet rooms, and plumbing penetrations
Industrial Maintenance & Repair:
- Metal Structure Protection: Steel beams, pipelines, storage tanks, and structural steel
- Concrete Repair & Protection: Crack sealing, spall repair, and surface protection
- Flooring Systems: Industrial floors, loading docks, and warehouse areas
Specialized Applications:
- Marine & Offshore: Boat decks, docks, and marine structures
- Transportation Infrastructure: Bridge abutments, parking structures, and tunnel walls
- Agricultural Equipment: Animal housing, silos, and equipment protection
Surface Preparation Guidelines
Concrete Substrates:
- Surface must be sound, clean, dry, and free of dust, oil, grease, and laitance
- Repair cracks and voids with appropriate patching compound
- Surface moisture content should not exceed 4%
- Light abrasive blasting or mechanical scarification recommended for optimal adhesion
Metal Substrates:
- Remove all rust, mill scale, and contaminants to SSPC-SP 2/SP 3 standards
- Degrease with appropriate solvent cleaner
- For rusty surfaces, treat with rust converter or remove to bare metal
Wood Substrates:
- Surface must be dry, clean, and free of loose fibers
- Sand smooth and remove all dust
- Seal knots and treat with appropriate wood primer if necessary
Step-by-Step Application Process
- Surface Preparation: Clean and prepare substrate according to guidelines above.
- Primer Application (if required): Apply recommended primer for specific substrates, allow to dry.
- Material Preparation: Stir product thoroughly before use. Do not thin with solvents.
- First Coat Application: Apply using brush, roller, or squeegee. Maintain uniform thickness.
- Intercoat Interval: Allow 4-6 hours before applying second coat (touch-dry condition).
- Second Coat Application: Apply perpendicular to first coat direction for complete coverage.
- Curing Period: Allow 24 hours before light foot traffic, 48-72 hours for full service.
- Cleanup: Clean tools with appropriate solvent immediately after use.
Coverage & Consumption Guidelines
| Application Method | Recommended Thickness | Coverage Rate | Number of Coats |
|---|---|---|---|
| Brush Application | 0.8-1.2 mm per coat | 1.2-1.5 kg/m² per coat | 2 coats minimum |
| Roller Application | 0.6-1.0 mm per coat | 1.0-1.3 kg/m² per coat | 2-3 coats recommended |
| Squeegee Application | 1.0-1.5 mm per coat | 1.4-1.8 kg/m² per coat | 1-2 coats sufficient |
Packaging & Storage Information
- Standard Packaging: 5L pail, 10L pail, 20L pail
- Bulk Packaging: 200L drum available for large projects
- Optimal Storage Conditions: Store in original sealed containers at 10-30°C
- Protection from Elements: Keep away from direct sunlight, moisture, and freezing conditions
- Shelf Life: 12 months from production date when stored properly
- Safety Information: Use with adequate ventilation. Wear protective gloves and eyewear.
Technical Support & Resources
We provide comprehensive support for successful application of our manual brushing polyurea:
- Application Videos & Guides: Step-by-step tutorials for various substrates
- Technical Data Sheets: Complete product specifications and performance data
- Project Consultation: Free guidance for specific application challenges
- Sample Program: Test materials available for evaluation projects
Technical Support Hotline: +86-15250943407
Email Support: sales@polyureamanufacturer.com
Why Choose Our Manual Brushing Polyurea?
- Proven Performance: Tested in demanding environments with verified results
- Cost-Effective Solution: Eliminates equipment rental and specialized labor costs
- Versatile Application: Suitable for multiple substrates and environments
- Quality Assurance: Manufactured under strict quality control standards
- Sustainability Commitment: Low environmental impact formulation
