Shandong Jiancheng Environmental Protection Technology Co., Ltd.
Shandong Jiancheng Environmental Protection Technology Co., Ltd.
Jiancheng sprayed polyurea "JCSPUA-001".
1. "JCSPUA-001" is a high-strength sprayed polyurea elastic material. The maximum elongation rate of break can reach 400%, cure in 3-5 seconds. The surface is very dense and can be dripped without leakage.
2. "JCSPUA-001" is a two-component material, "JCSPUA-001A" and "JCSPUA-001B". A: 220KG/Barrel+ B: 210KG/Barrel.
Component A is an isocyanate component, and B is an amino compound component.
Application of spray-coated polyurea (SPUA)
Sprayed polyurea is an excellent high-end waterproof and anticorrosion coating. Its excellent density and weather resistance are suitable for extremely harsh outdoor environments, and are resistant to high and low temperatures, and the elongation rate of break can reach more than 400%. It can be used in all areas where waterproofing is needed, such as outdoor swimming pools, roof tiles waterproofing, reservoir waterproofing, storage tank waterproofing, anti-corrosion, pipe corrosion protection and other fields.
How to use SPUA "JCSPUA-001" in Jiancheng
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. How to use "JCSPUA-001" spray polyurea, use a professional high-pressure sprayer to perform spraying operations at a discharge speed of 1.1:1 to ensure that the discharge is consistent, the mixing is even, and the material cannot be deviated.
5. How to use "JCSPUM-001" polyurea topcoat, mix evenly according to the required ratio of the label, use an airless sprayer or a roller brush, apply evenly to ensure no bottom exposure phenomenon. Light colors can be constructed in two times, and the mixed materials must be used within 20 minutes.
Notes on using "JCSPUA"
1. The ground must be completely closed and no air holes are allowed.
2. Mix SPUA 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 Crack-Resistant spray polyurea coating: Comprehensive Guide
Elastic crack-resistant spray polyurea coating is a high-performance protective solution designed to prevent cracking, leakage, and surface degradation across industrial, commercial, and residential applications. Its superior elasticity, rapid curing, and strong adhesion allow it to bridge minor structural cracks while maintaining waterproofing and corrosion resistance. Ideal for roofs, floors, pipelines, tanks, and bridges, this spray-applied polyurea coating offers long-lasting durability under extreme mechanical, chemical, and weather conditions.
This guide covers troubleshooting, maintenance methods, rapid installation instructions, and product certifications, providing a comprehensive reference for engineers, contractors, and facility managers.
| Feature | Description |
|---|---|
| Elasticity | Bridges cracks and accommodates structural movement. |
| Crack Resistance | Prevents surface fissures and leakage under thermal and mechanical stress. |
| Rapid Curing | Touch-dry in seconds, reducing downtime. |
| Waterproof & Corrosion Resistant | Protects surfaces from water, chemicals, and corrosion. |
| Durable | Withstands abrasion, UV exposure, and harsh environments. |
| Eco-Friendly | Solvent-free, low-VOC formulations meet environmental regulations. |
| Easy Application | Spray method ensures seamless coverage and uniform thickness. |
Elastic crack-resistant spray polyurea coating is suitable for a wide range of applications:
Industrial Facilities: Chemical tanks, pipelines, machinery, and storage units.
Infrastructure Projects: Bridges, parking decks, rooftops, and retaining walls.
Residential & Commercial Buildings: Roofs, terraces, balconies, and basements.
Marine Environments: Docks, ships, and seawater-exposed structures.
Waterproofing Projects: Reservoirs, water treatment plants, and containment areas.
| Parameter | Specification | Test Standard |
|---|---|---|
| Curing Time | 5–15 seconds | ASTM D5895 |
| Tensile Strength | 20–35 MPa | ASTM D412 |
| Elongation at Break | 400–600% | ASTM D412 |
| Shore Hardness (A) | 85–95 | ASTM D2240 |
| Water Absorption | <0.5% | ASTM D570 |
| Adhesion to Concrete/Metal | >3.0 MPa | ASTM D4541 |
| Chemical Resistance | Excellent against acids, alkalis, and salts | ASTM D1308 |
| Service Temperature Range | -40°C to 120°C | ISO 817 |
Ensure surfaces are clean, dry, and free of dust, oil, or loose particles.
Repair significant cracks or holes before application.
Use standard spray polyurea equipment with proper pressure settings.
Confirm that the spray temperature is within the recommended range.
Apply the first primer coat if required for adhesion.
Spray the polyurea coating evenly in overlapping passes.
Ensure a uniform thickness of 1.5–3 mm depending on the substrate and exposure conditions.
The coating becomes touch-dry within seconds.
Allow 24 hours for full mechanical properties to develop.
Conduct a visual check for continuity, pinholes, or uneven areas.
Measure thickness using ultrasonic gauges.
| Issue | Possible Cause | Solution |
|---|---|---|
| Surface cracks after curing | Substrate movement, improper thickness | Recoat with correct thickness, allow curing |
| Poor adhesion | Contaminated surface or inadequate primer | Clean substrate, apply primer, recoat |
| Blistering or bubbles | Moisture or trapped air during application | Remove affected area, dry substrate, reapply |
| Discoloration or yellowing | UV exposure or incompatible substrate | Use UV-resistant topcoat, ensure compatibility |
| Incomplete curing | Low temperature or incorrect spray settings | Adjust spray temperature and pressure |
Daily / Weekly Maintenance
Remove debris, dirt, and dust with gentle sweeping or rinsing.
Clean chemical spills immediately with mild detergent.
Monthly / Quarterly Inspection
Inspect for scratches, punctures, or wear in high-traffic areas.
Verify adhesion and elasticity, especially on horizontal surfaces.
Annual Maintenance
Conduct detailed inspection for UV degradation, chemical exposure, or mechanical damage.
Recoat or touch up damaged areas to maintain continuous protection.
ISO 9001: Quality management system compliance.
ASTM Standards: Meets ASTM D5895, D412, D4541, D2240, D570, D1308 for mechanical and chemical performance.
Environmental Compliance: Solvent-free and low-VOC, meeting international environmental regulations.
Industry Approvals: Recognized for commercial and industrial waterproofing projects.
| Feature | Elastic Polyurea Coating | Traditional Coatings |
|---|---|---|
| Curing Time | Seconds to minutes | Hours to days |
| Flexibility / Crack Bridging | High, bridges minor cracks | Low, prone to cracking |
| Waterproof & Chemical Resistance | Excellent | Moderate |
| Seamless Coverage | Yes | Limited |
| Maintenance Requirements | Minimal | Moderate |
| Environmental Compliance | Solvent-free, low VOC | Often solvent-based |
Elastic crack-resistant spray polyurea coating offers rapid, durable, and flexible protection for a wide range of surfaces. Its superior crack bridging, chemical resistance, and waterproofing performance make it suitable for industrial, commercial, and residential applications. Proper surface preparation, application, and maintenance are critical to ensuring long-term performance.
For engineers, contractors, and facility managers seeking high-performance waterproofing and anti-crack solutions, elastic spray polyurea coatings provide a reliable, environmentally friendly, and cost-effective option.
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