Shandong Jiancheng Environmental Protection Technology Co., Ltd.
Shandong Jiancheng Environmental Protection Technology Co., Ltd.
Hand brushed polyurea HBPUA types
1. Single-component hand-brushed polyurea "JCHBPUA-001", is a single-component polyurea waterproof material ready to use. Its purpose is mainly waterproof and expansion joint filling.
2. Two-component hand-brushed polyurea "JCHBPUA-002" is a two-component polyurea material. Its main purpose is waterproof and corrosion-resistant. It can be used on outdoor concrete or tile foundation floors. Its performance is second only to sprayed polyurea "JCSPUA-001", with 300% elongation, excellent weather resistance and waterproof performance.
3. Polyurea self-leveling "JCHBPUA-SL001" is a load-bearing polyurea floor material, suitable for indoor workshops and garage floors, or corrosive workshop floors. It has excellent physical and mechanical properties, the surface hardness can reach 7H, and it is waterproof and corrosion-resistant.
Application scenarios of hand-brushed polyurea HBPUA
Pools, outdoor concrete or tiled floors, reservoirs, workshops, terraces and other floors that require waterproofing.
How to use polyurea HBPUA by hand brushing
1. Base grinding, crack cutting treatment, and vacuum clean;
2. How to use the "JCEPDT-006" primer, apply the polyurea primer brush once, and there is whitening on the ground, and re-coat locally. "JCEPDT-006" is stirred evenly according to the label ratio, apply it evenly once with the medium-hair roller, and use it within 30 minutes.
3. How to use the sealing layer of the "JCEPZT-007" intermediate paint, and use a full batch of "JCEPZT-007" intermediate paint + quartz sand, stir evenly according to the label ratio, use a push knife to scrape it evenly, and use it within 30 minutes.
4. HBPUA is mixed evenly according to the label ratio and used within 20 minutes. The minimum unit consumption of all polyurea materials is 1.8 kg per square meter.
Precautions for hand-brushing polyurea HBPUA
1. The ground must be completely closed and no air holes are allowed.
2. Mix HBPUA evenly, control the discharge speed, ensure that the two components are discharged at the same time, and there is no deviation in the material.
3. The two-pass construction interval should not exceed 48 hours. After it exceeds, it must be polished.
4. The ground moisture content should not exceed 8%.
Handmade Polyurea Roof Waterproofing Material: Complete Guide
Handmade polyurea roof waterproofing material is a high-performance, hand-applied coating designed to protect roofs from water infiltration, UV damage, and environmental wear. Its superior elasticity, adhesion, and weather resistance make it ideal for residential, commercial, and industrial rooftops. This guide provides detailed insights into maintenance cycles, component checklists, installation conditions, and product applications, suitable for contractors, facility managers, and project engineers.
Seamless Protection: Forms a continuous waterproof layer without joints.
High Elasticity: Bridges micro-cracks and prevents leaks.
UV and Weather Resistance: Protects against sun, rain, and temperature fluctuations.
Durable Performance: Resistant to mechanical stress and environmental wear.
Eco-Friendly: Solvent-free, low VOC, compliant with environmental standards.
Versatile Substrate Compatibility: Can be applied on concrete, metal, and composite roof surfaces.
| Parameter | Specification | Test Standard |
|---|---|---|
| Curing Time | 5–15 seconds | ASTM D5895 |
| Tensile Strength | 25–45 MPa | ASTM D412 |
| Elongation at Break | 400–700% | ASTM D412 |
| Shore Hardness (A) | 85–95 | ASTM D2240 |
| Adhesion to Substrate | ≥3.0 MPa | ASTM D4541 |
| Water Absorption | <0.5% | ASTM D570 |
| Service Temperature Range | -40°C to 120°C | ISO 817 |
| VOC Content | <50 g/L | EPA Method 24 |
Ensure the roof is clean, dry, and free of dust, grease, or loose particles.
Repair any cracks, holes, or uneven areas before application.
For highly porous surfaces, apply a primer layer to improve adhesion.
Recommended temperature range: 5°C to 35°C for optimal curing.
Avoid application during heavy rain, strong winds, or high humidity conditions.
Ensure proper ventilation for enclosed rooftop areas.
Store resin and curing agent at room temperature (20–25°C).
Mix components according to manufacturer instructions before application.
Hand-Applied Techniques:
Prepare the substrate and apply primer if needed.
Mix polyurea resin and curing agent thoroughly.
Apply using brush, roller, or trowel to achieve uniform coverage.
Recommended thickness: 1.5–3 mm for general roof surfaces.
Allow 24 hours for full curing before exposure to water or heavy loads.
Rapid Application Guide:
[Roof Substrate] → [Primer Layer (optional)] → [Hand-Applied Polyurea Coating] → [Optional Topcoat]
| Component | Purpose |
|---|---|
| Polyurea Resin | Main protective layer formation |
| Curing Agent / Hardener | Initiates polymerization for rapid curing |
| Primer (optional) | Enhances adhesion on porous substrates |
| Brush / Roller / Trowel | Hand application tools |
| Protective Equipment | Gloves, goggles, masks for safe handling |
Daily Maintenance:
Sweep or rinse the roof surface to remove debris, leaves, and dust.
Avoid dragging sharp or heavy objects across the coated surface.
Periodic Inspection:
Check for scratches, abrasions, or signs of delamination.
Recoat damaged areas promptly to maintain waterproof performance.
Maintenance Cycle:
| Interval | Task |
|---|---|
| Daily | Surface cleaning and debris removal |
| Monthly | Inspect for visible wear or cracks |
| Quarterly | Minor touch-ups on affected areas |
| Annually | Full inspection and recoating if necessary |
Residential Roofs: Flat and sloped roofs, terraces, and balconies.
Commercial Buildings: Offices, shopping centers, and warehouses.
Industrial Facilities: Factories, chemical plants, and storage structures.
Waterproofing Projects: Rooftop tanks, water features, and outdoor surfaces.
Infrastructure: Bridges, overpasses, and other exposed structural surfaces.
| Feature | Handmade Polyurea Coating | Conventional Roof Coatings |
|---|---|---|
| Curing Time | Seconds to minutes | Hours to days |
| Elasticity | High, bridges micro-cracks | Low |
| Weather Resistance | Excellent | Moderate |
| Seamless Coverage | Yes | Often requires multiple layers |
| Maintenance Frequency | Minimal | Frequent |
| Durability | Long-lasting | Moderate |
Always wear gloves, goggles, and masks during application.
Ensure adequate ventilation in enclosed rooftop spaces.
Avoid skin and eye contact; wash immediately if accidental exposure occurs.
Follow manufacturer safety data sheets (SDS) for proper handling and storage.
Handmade polyurea roof waterproofing material provides exceptional waterproofing, durability, and elasticity, making it an ideal choice for residential, commercial, and industrial rooftops. With proper installation, maintenance, and inspection, it ensures long-lasting protection against water infiltration, UV damage, and environmental wear. Its eco-friendly formulation and seamless application make it a superior alternative to conventional roof coatings.
Contractors and project managers seeking high-performance roof waterproofing solutions will benefit from its ease of application, rapid curing, and excellent adhesion, ensuring reliable and durable results for diverse roofing projects.
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