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LR-524
Ruqinba
LR-524 is a cutting-edge, solvent-free polyaspartic resin engineered for professionals who require a perfect balance of low viscosity and high mechanical elasticity.
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LR-524 is a cutting-edge, solvent-free polyaspartic resin engineered for professionals who require a perfect balance of low viscosity and high mechanical elasticity. With its unique bis-secondary amine structure, LR-524 serves as a high-performance reactive backbone for -NCO groups, enabling the creation of aliphatic polyurea systems that remain resilient in the harshest environments.
While traditional resins struggle with brittleness in cold climates, LR-524 is designed to maintain structural integrity, remaining completely crack-free even at temperatures as low as -35°C.
In the B2B coatings industry, the ability to formulate 100% solids coatings without sacrificing workability is crucial. LR-524 offers distinct technical advantages:
LR-524 is the "elastic specialist" in our resin lineup. When combined with specific curing agents, it produces highly elastic materials that can bridge substrate cracks. This makes it indispensable for outdoor waterproofing projects in regions with extreme thermal cycling.
With a viscosity range of 200-1000 mPa·s, this polyaspartic resin ensures excellent substrate wetting and self-leveling properties. It allows for high-build applications via spray, roller, or trowel, significantly reducing application time and labor costs.
LR-524 provides an impenetrable barrier against UV radiation and oxidation. Tested under 4,000 hours of QUV-A exposure, the coating retains over 95% of its performance metrics, preventing common failures like chalking, yellowing, or peeling.
Durability is measured by performance under stress. LR-524 exhibits a Taber abrasion loss of ≤ 20 mg (ASTM D4060), ensuring that industrial floors and protective topcoats can withstand heavy traffic and mechanical impact for years.
Every batch of LR-524 polyaspartic resin undergoes rigorous quality control to ensure consistency for your production line:
| Parameter | Specification Range | Test Method |
| Appearance | Colorless to light yellow transparent liquid | Visual |
| Viscosity (mPa·s @ 25°C) | 200 - 1000 | Q/RQB 5005-2025 |
| Solids Content (%) | 96 ± 2 | GB/T 9751.1-2008 |
| Amine Value (mgKOH/g) | 160 - 180 | Q/RQB 3013-2025 |
| NH Equivalent ( g/mol ) | 333 | Theoretical |
| Density (Water=1, 25°C) | 1.00 - 1.08 | GB/T 15223-2008 |
Note: The data represents typical values only and should not be considered as specifications or guaranteed values for the material unless explicitly agreed upon in writing.
The unique molecular architecture of LR-524 makes it a versatile component for multiple industries:
Elastic Waterproofing: Optimal for high-end waterproofing in kitchens, bathrooms, roofs, and balconies.
Infrastructure Protection: Long-term topcoats for steel structures, oil pipelines, and bridge decks.
Commercial & Industrial Flooring: Used in parking garages, sports floors, and residential high-solid coatings.
Specialty Landscape Coatings: Durable protective layers for foam sculptures and outdoor landscaping features.
Swimming Pool Systems: Reliable, UV-resistant finishes for pool interiors and surrounding decks.
LR-524 provides formulation freedom. By selecting different curing agents, technical teams can adjust the final film properties:
For High Elongation: Use with elastic hardeners for maximum crack-bridging.
For Enhanced Hardness: Blend with rigid curing agents or HDI trimers to increase surface toughness while maintaining the aliphatic benefits.
As a leading global supplier of polyaspartic resin, Ruqinba Group supports your business with:
Packaging: Available in standardized 200 KG drums.
Storage: 12-month shelf life in sealed containers (<30°C).
Technical Support: Our lab team is ready to assist with formulation optimization and compatibility testing.
Ready to upgrade your coating technology? Contact our technical representatives today for a sample or a customized quote.