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LR-1220
Ruqinba
LR-1220 is a solvent-free resin with a bis-secondary amine structure, capable of binding with polyisocyanates.
LR-1220 is a solvent-free resin with a bis-secondary amine structure, capable of binding with polyisocyanates.
Our polyaspartic resin technology is engineered to meet the most demanding industrial coating requirements. Here are modern coating manufacturers' top 11 reasons to choose this high-performance solution:
Eco-Friendly Formulation: Features high solids content and low viscosity, enabling 100% solids applications that significantly reduce VOC emissions.
Rapid Production Cycles: Exhibits ultra-high reactivity. When cured with HDI trimer, it achieves surface dryness within just 2 minutes, drastically improving throughput and efficiency.
Excellent Surface Appearance: Delivers coatings with outstanding film build, exceptional leveling properties, and a high-gloss finish for a premium look.
Comprehensive Barrier Protection: The cured film offers superior resistance to water, solvents, acids, alkalis, and salt spray.
Weather & Temperature Resilience: Maintains outstanding weatherability and low-temperature flexibility in harsh environments.
Industrial-Grade Hardness: Achieves a surface hardness up to 2H.
Exceptional Abrasion Resistance: Demonstrates high wear resistance with weight loss ≤ 20 mg (at 500r/750g load).
Broad Substrate Bonding: Provides excellent adhesion to various metallic substrates and common plastics, including ABS, PC, and PVC.
Resin Compatibility: Fully compatible with most hydroxyl-acrylic resins and cellulose acetate butyrate (CAB), allowing for diverse formulation blends.
Our polyaspartic resin is highly adaptable to different mechanical requirements:
For Elastomeric Materials: When combined with flexible curing agents, it produces materials with 400% elongation at break and 25 MPa tensile strength.
For Rigid Coatings: When blended with rigid curing agents or HDI hardeners, it creates ultra-tough coatings with 2H hardness.
SPUA Application: Ideal for use as a primary resin or chain extender in the R-component of Spray Polyurea Elastomers (SPUA).
| Item | Typical Value | Test Method |
| Appearance | Colorless to light yellow transparent liquid | Visual Inspection |
| NH Equivalent (g/mol) | 230 | Theoretical |
| Hydroxyl value Equivalent(%) | 7.3-7.5 | Theoretical |
| Color (Fe-Co) | ≤4 | GB/T 1722-1992 |
| Amine Value (mgKOH/g) | 230-252 | Q/RQB 3013-2025 |
| Relative Density (relative to water,25°C) | 1.02-1.08 | GB/T 15223-2008 |
| Solids Content (%) | ≥95 | Q/RQB 5005-2025 |
| Viscosity (mPa·s,25°C) | 30-150 | GB/T 9751.1-2008 |
Automotive Paints: Formulated for high-durability automotive coatings.
Premium Wood Finishes: Ideal for high-quality wood coatings.
Performance Edge: Significantly enhances gloss, film build, surface hardness, and reduces through-dry time.
Infrastructure: Suitable for both heavy-duty and light-duty corrosion protection systems.
Steel & Energy: Specifically designed for steel structures and petroleum pipelines exposed to harsh environments.
Wind Turbine Blades: A critical solution for the wind energy sector.
Comprehensive Use: Applicable for gel coats, specialized putties, and protective topcoats to ensure long-term blade integrity.
Concrete Protection: High-performance materials for concrete waterproofing.
Landscaping: Used as a protective layer for foam landscaping products.
Flexible Systems: Can be used as a standalone resin or blended with hydroxyl-functional acrylics to react with aliphatic isocyanates for high-solids clear coats.
Precise Control: Fully compatible with amine-functional resins (such as LR1520 and LR1420), allowing formulators to precisely adjust pot life and drying time in high-solids polyurea topcoats.