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%.
Elastic Handmade Polyurea Anti-Cracking Coating: Complete Guide
Elastic handmade polyurea anti-cracking coating is a high-performance protective material designed for industrial and commercial applications. Its primary function is to prevent surface cracks, extend the lifespan of substrates, and provide resistant protection against chemicals, wear, and environmental factors. This hand-applied coating ensures seamless adhesion and high elasticity, making it suitable for roofs, floors, pipelines, and storage tanks. This guide provides a comprehensive overview of components, installation steps, maintenance schedules, and design philosophy, ensuring optimal application and performance.
Superior Elasticity: Bridges micro-cracks and accommodates structural movement.
Seamless Coverage: Hand-applied method avoids joints or weak points.
Durable Protection: Resistant to abrasion, chemicals, UV radiation, and mechanical impacts.
Chemical Resistance: Provides long-lasting protection in harsh chemical environments.
Environmental Compliance: Low VOC formulation ensures safer indoor and outdoor use.
Versatile Applications: Suitable for concrete, metal, composite surfaces, and more.
| Parameter | Specification | Test Standard |
|---|---|---|
| Curing Time | 10–20 seconds | ASTM D5895 |
| Tensile Strength | 25–45 MPa | ASTM D412 |
| Elongation at Break | 350–700% | ASTM D412 |
| Shore Hardness (A) | 85–95 | ASTM D2240 |
| Adhesion to Substrate | ≥3.0 MPa | ASTM D4541 |
| Chemical Resistance | Excellent against acids, alkalis | ASTM D543 |
| Water Absorption | <0.5% | ASTM D570 |
| Service Temperature Range | -40°C to 120°C | ISO 817 |
| VOC Content | <50 g/L | EPA Method 24 |
Polyurea Resin Base: Provides elasticity and long-lasting protection.
Curing Agent / Hardener: Ensures rapid cross-linking and durability.
Primer (Optional): Enhances adhesion on porous or oxidized surfaces.
Application Tools: Brushes, rollers, trowels, or hand-held sprayers.
Protective Equipment: Gloves, goggles, and respirators for safe handling.
Remove dust, oil, grease, or loose particles.
Repair any cracks, holes, or uneven surfaces before coating.
Apply a primer layer on porous substrates to improve adhesion.
Store resin and curing agent at room temperature (20–25°C).
Mix thoroughly according to manufacturer instructions.
Apply coating evenly with brush, roller, or trowel.
Recommended thickness: 1.5–3 mm depending on substrate type and exposure.
Allow curing for 24 hours before exposure to chemicals, water, or heavy loads.
Inspect for voids, bubbles, or thin spots.
Apply touch-ups if necessary to maintain continuous protection.
Daily Maintenance:
Clean surfaces with mild detergent and water.
Avoid dragging sharp or heavy objects across the coating.
Periodic Maintenance:
Inspect for abrasion, cracks, or delamination.
Reapply or touch-up coating in damaged areas to maintain protection.
| Interval | Maintenance Task |
|---|---|
| Daily | Clean surface, remove debris |
| Weekly | Inspect for micro-cracks |
| Monthly | Touch-up minor wear areas |
| Annually | Full inspection, recoating if needed |
Elasticity as Core Principle: Coating bridges micro-cracks and adapts to substrate movement.
Seamless Protection: Hand-applied coating ensures no weak points.
Durable Performance: Resistant to chemical attack, abrasion, UV exposure, and mechanical wear.
Environmental Safety: Low VOC, solvent-free, eco-friendly coating.
Versatility: Can be applied on various substrates including concrete, metal, and composite surfaces.
Roofs: Prevents cracking from thermal expansion and UV exposure.
Industrial Floors: Protects against heavy traffic, spills, and chemical exposure.
Pipelines & Storage Tanks: Offers corrosion and chemical resistance.
Bridges & Infrastructure: Maintains structural integrity by preventing micro-cracks.
Machinery & Equipment: Provides a flexible protective layer against wear and chemicals.
| Feature | Handmade Polyurea Coating | Conventional Coatings |
|---|---|---|
| Curing Time | Seconds to minutes | Hours to days |
| Elasticity | High, bridges micro-cracks | Low |
| Seamless Coverage | Yes | Often requires multiple layers |
| Chemical Resistance | Excellent | Moderate |
| Durability | Long-lasting | Moderate |
| Maintenance Frequency | Low | High |
Wear protective gloves, goggles, and clothing.
Ensure adequate ventilation in enclosed spaces.
Avoid skin and eye contact; wash immediately if exposed.
Follow the Safety Data Sheet (SDS) for handling, storage, and disposal.
Elastic handmade polyurea anti-cracking coating provides high elasticity, chemical resistance, and seamless protection for demanding industrial and commercial environments. Its hand-applied, eco-friendly formulation ensures long-lasting performance with minimal maintenance. By following proper installation, maintenance, and safety protocols, this coating prevents micro-cracks, enhances structural integrity, and extends substrate life, making it a top choice for roofs, floors, pipelines, and other critical surfaces.
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